diff --git a/Telegram/Resources/lang.txt b/Telegram/Resources/lang.txt
index e3a010172..9f6b83a0d 100644
--- a/Telegram/Resources/lang.txt
+++ b/Telegram/Resources/lang.txt
@@ -161,6 +161,7 @@ lng_settings_view_emojis: "View list";
 lng_settings_emoji_list: "List of supported emojis";
 lng_settings_send_enter: "Send by Enter";
 lng_settings_send_ctrlenter: "Send by Ctrl+Enter";
+lng_settings_send_cmdenter: "Send by Cmd+Enter";
 lng_settings_cats_and_dogs: "Allow cats and dogs";
 
 lng_download_path_dont_ask: "Don't ask download path for each file";
@@ -379,3 +380,4 @@ source code is available on [a href=\"https://github.com/telegramdesktop/tdeskto
 lng_about_done: "Done";
 
 // Keys finished
+
diff --git a/Telegram/Resources/style.txt b/Telegram/Resources/style.txt
index 7df2b7ac3..5da0ec3f3 100644
--- a/Telegram/Resources/style.txt
+++ b/Telegram/Resources/style.txt
@@ -19,8 +19,9 @@ defaultFontFamily: 'Segoe UI';
 //defaultFontFamily: 'ThoolikaTraditionalUnicode';
 semibold: 'Segoe WP Semibold';
 
-spriteFile: ':/gui/art/sprite.png' / 2:':/gui/art/sprite_125x.png' / 3:':/gui/art/sprite_150x.png' / 4:':/gui/art/sprite_200x.png';
-emojisFile: ':/gui/art/emoji.png' / 2:':/gui/art/emoji_125x.png' / 3:':/gui/art/emoji_150x.png' / 4:':/gui/art/emoji_200x.png';
+spriteFile: ':/gui/art/sprite.png' / 2:':/gui/art/sprite_125x.png' / 3:':/gui/art/sprite_150x.png' / 4:':/gui/art/sprite_200x.png'; // exceptional value for retina
+emojisFile: ':/gui/art/emoji.png' / 2:':/gui/art/emoji_125x.png' / 3:':/gui/art/emoji_150x.png' / 4:':/gui/art/emoji_200x.png'; // exceptional value for retina
+emojiImgSize: 16px; // exceptional value for retina
 emojiSize: 16px;
 emojiPadding: 1px;
 
diff --git a/Telegram/SourceFiles/_other/genstyles.cpp b/Telegram/SourceFiles/_other/genstyles.cpp
index b2dddf68b..9c05054a4 100644
--- a/Telegram/SourceFiles/_other/genstyles.cpp
+++ b/Telegram/SourceFiles/_other/genstyles.cpp
@@ -60,7 +60,7 @@ string outputTypeNames[] = {
 	"color",
 	"point",
 	"rect",
-	"rect",
+	"sprite",
 	"size",
 	"transition",
 	"cursor",
@@ -1302,7 +1302,11 @@ string prepareObject(const string &cls, Fields fields, const string &obj, int va
 		} else if (f.value().first != j.value()) {
 			throw Exception(QString("Bad type of field %1 while parsing %2").arg(j.key().c_str()).arg(obj.c_str()));
 		} else {
-			result += findScalarVariant(f.value().second, variant);
+            if (variant == -1) { // retina
+                result += findScalarVariant(f.value().second, (j.value() == scSprite) ? 4 : 0);
+            } else {
+                result += findScalarVariant(f.value().second, variant);
+            }
 		}
 		fields.erase(f);
 		if (++j != e) {
@@ -1518,7 +1522,7 @@ GNU General Public License for more details.\n\
 Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE\n\
 Copyright (c) 2014 John Preston, https://tdesktop.com\n\
 */\n";
-			tcpp << "#include \"stdafx.h\"\n#include \"style_auto.h\"\n\n";
+			tcpp << "#include \"stdafx.h\"\n#include \"style_auto.h\"\n\nnamespace {\n";
 			for (int i = 0, l = scalars.size(); i < l; ++i) {
 				Scalar &sc(scalars[i]);
 				tout << "\textern const style::" << outputTypeNames[sc.second.first].c_str() << " &" << sc.first.c_str() << ";\n";
@@ -1531,7 +1535,8 @@ Copyright (c) 2014 John Preston, https://tdesktop.com\n\
 				tout << "\textern const style::" << obj.second.first.c_str() << " &" << obj.first.c_str() << ";\n";
 				tcpp << "\tstyle::" << obj.second.first.c_str() << " _" << obj.first.c_str() << prepareObject(obj.second.first, obj.second.second, obj.first, variant).c_str() << ";\n";
 			}
-			tout << "\n};\n";
+			tout << "};\n";
+            tcpp << "};\n";
 
 			tcpp << "\nnamespace st {\n";
 			for (int i = 0, l = scalars.size(); i < l; ++i) {
@@ -1543,15 +1548,33 @@ Copyright (c) 2014 John Preston, https://tdesktop.com\n\
 				Object &obj(objects[i]);
 				tcpp << "\tconst style::" << obj.second.first.c_str() << " &" << obj.first.c_str() << "(_" << obj.first.c_str() << ");\n";
 			}
-			tcpp << "\n};\n";
+			tcpp << "};\n";
 
 			tcpp << "\nnamespace style {\n\n";
 			tcpp << "\tFontFamilies _fontFamilies;\n";
 			tcpp << "\tFontDatas _fontsMap;\n";
 			tcpp << "\tColorDatas _colorsMap;\n\n";
 			tcpp << "\tvoid startManager() {\n";
-
-			tcpp << "\n\t\tswitch (cScale()) {\n\n";
+            
+            tcpp << "\n\t\tif (cRetina()) {\n";
+            tcpp << "\t\t\tcSetRealScale(dbisOne);\n\n";
+            for (int i = 0, l = scalars.size(); i < l; ++i) {
+                Scalar &sc(scalars[i]);
+                if (sc.second.first == scSprite || sc.first == "spriteFile" || sc.first == "emojisFile" || sc.first == "emojiImgSize") {
+                    string v = findScalarVariant(sc.second.second, 4);
+                    if (v != findScalarVariant(sc.second.second, 0)) {
+                        tcpp << "\t\t\t_" << sc.first.c_str() << " = style::" << outputTypeNames[sc.second.first].c_str() << v.c_str() << ";\n";
+                    }
+                }
+            }
+            for (int i = 0, l = objects.size(); i < l; ++i) {
+                Object &obj(objects[i]);
+                string v = prepareObject(obj.second.first, obj.second.second, obj.first, -1); // retina
+                if (v != prepareObject(obj.second.first, obj.second.second, obj.first, 0)) {
+                    tcpp << "\t\t\t_" << obj.first.c_str() << " = style::" << obj.second.first.c_str() << v.c_str() << ";\n";
+                }
+            }
+            tcpp << "\t\t} else switch (cScale()) {\n\n";
 			for (int i = 1; i < variantsCount; ++i) {
 				variant = variants[i];
 				const char *varName = variantNames[i];
diff --git a/Telegram/SourceFiles/app.cpp b/Telegram/SourceFiles/app.cpp
index 6cb8f499e..2a240a0c9 100644
--- a/Telegram/SourceFiles/app.cpp
+++ b/Telegram/SourceFiles/app.cpp
@@ -1204,9 +1204,11 @@ namespace App {
 
 		if (!::sprite) {
 			::sprite = new QPixmap(st::spriteFile);
+            if (cRetina()) ::sprite->setDevicePixelRatio(cRetinaFactor());
 		}
 		if (!::emojis) {
 			::emojis = new QPixmap(st::emojisFile);
+            if (cRetina()) ::emojis->setDevicePixelRatio(cRetinaFactor());
 		}
 		initEmoji();
 	}
@@ -1300,12 +1302,13 @@ namespace App {
 		EmojisMap *map = &(fontHeight == st::taDefFlat.font->height ? mainEmojisMap : otherEmojisMap[fontHeight]);
 		EmojisMap::const_iterator i = map->constFind(emoji->code);
 		if (i == map->cend()) {
-			QImage img(st::emojiSize + st::emojiPadding * 2, fontHeight, QImage::Format_ARGB32_Premultiplied);
+			QImage img(st::emojiImgSize + st::emojiPadding * cIntRetinaFactor() * 2, fontHeight * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
+            if (cRetina()) img.setDevicePixelRatio(cRetinaFactor());
 			{
 				QPainter p(&img);
 				p.setCompositionMode(QPainter::CompositionMode_Source);
 				p.fillRect(0, 0, img.width(), img.height(), Qt::transparent);
-				p.drawPixmap(QPoint(st::emojiPadding, (fontHeight - st::emojiSize) / 2), App::emojis(), QRect(emoji->x, emoji->y, st::emojiSize, st::emojiSize));
+				p.drawPixmap(QPoint(st::emojiPadding * cIntRetinaFactor(), (fontHeight * cIntRetinaFactor() - st::emojiImgSize) / 2), App::emojis(), QRect(emoji->x, emoji->y, st::emojiImgSize, st::emojiImgSize));
 			}
 			i = map->insert(emoji->code, QPixmap::fromImage(img));
 		}
diff --git a/Telegram/SourceFiles/application.cpp b/Telegram/SourceFiles/application.cpp
index 60309b673..f902fc4cb 100644
--- a/Telegram/SourceFiles/application.cpp
+++ b/Telegram/SourceFiles/application.cpp
@@ -82,9 +82,10 @@ Application::Application(int &argc, char **argv) : PsApplication(argc, argv),
 	installEventFilter(new _DebugWaiter(this));
 
 	QFontDatabase::addApplicationFont(qsl(":/gui/art/segoe_ui.ttf"));
+    QFontDatabase::addApplicationFont(qsl(":/gui/art/segoeuib.ttf"));
 	QFontDatabase::addApplicationFont(qsl(":/gui/art/segoe_ui_semibold.ttf"));
-	QFontDatabase::addApplicationFont(qsl(":/gui/art/segoe_wp_semibold.ttf"));
-	QFontDatabase::addApplicationFont(qsl(":/gui/art/ThoolikaTrditionalUnicode.ttf"));
+    QFontDatabase::addApplicationFont(qsl(":/gui/art/segoe_wp_semibold.ttf"));
+//	QFontDatabase::addApplicationFont(qsl(":/gui/art/ThoolikaTrditionalUnicode.ttf"));
 
 	float64 dpi = primaryScreen()->logicalDotsPerInch();
 	if (dpi <= 108) { // 0-96-108
@@ -97,6 +98,12 @@ Application::Application(int &argc, char **argv) : PsApplication(argc, argv),
 		cSetScreenScale(dbisTwo);
 	}
 
+    if (devicePixelRatio() > 1) {
+        cSetRetina(true);
+        cSetRetinaFactor(devicePixelRatio());
+        cSetIntRetinaFactor(int32(cRetinaFactor()));
+    }
+
 	if (!cLangFile().isEmpty()) {
 		LangLoaderPlain loader(cLangFile());
 		if (!loader.errors().isEmpty()) {
@@ -498,10 +505,6 @@ void Application::startApp() {
 		App::writeUserConfig();
 		cSetNeedConfigResave(false);
 	}
-    if (devicePixelRatio() > 1) {
-        cSetRetina(true);
-        cSetRetinaFactor(devicePixelRatio());
-    }
 
 	window->createWinId();
 	window->init();
diff --git a/Telegram/SourceFiles/art/grid.png b/Telegram/SourceFiles/art/grid.png
index b886b374d..07ab30f8b 100644
Binary files a/Telegram/SourceFiles/art/grid.png and b/Telegram/SourceFiles/art/grid.png differ
diff --git a/Telegram/SourceFiles/art/grid_125x.png b/Telegram/SourceFiles/art/grid_125x.png
index 40409c8b8..96ebd1ef0 100644
Binary files a/Telegram/SourceFiles/art/grid_125x.png and b/Telegram/SourceFiles/art/grid_125x.png differ
diff --git a/Telegram/SourceFiles/art/grid_150x.png b/Telegram/SourceFiles/art/grid_150x.png
index ceaa29ce4..f8a9436d3 100644
Binary files a/Telegram/SourceFiles/art/grid_150x.png and b/Telegram/SourceFiles/art/grid_150x.png differ
diff --git a/Telegram/SourceFiles/art/grid_200x.png b/Telegram/SourceFiles/art/grid_200x.png
index 2316f49f3..6ec78ce5f 100644
Binary files a/Telegram/SourceFiles/art/grid_200x.png and b/Telegram/SourceFiles/art/grid_200x.png differ
diff --git a/Telegram/SourceFiles/art/segoeuib.ttf b/Telegram/SourceFiles/art/segoeuib.ttf
new file mode 100644
index 000000000..aea25424d
Binary files /dev/null and b/Telegram/SourceFiles/art/segoeuib.ttf differ
diff --git a/Telegram/SourceFiles/art/sprite_125x.png b/Telegram/SourceFiles/art/sprite_125x.png
index ddac976c6..abebece00 100644
Binary files a/Telegram/SourceFiles/art/sprite_125x.png and b/Telegram/SourceFiles/art/sprite_125x.png differ
diff --git a/Telegram/SourceFiles/art/sprite_150x.png b/Telegram/SourceFiles/art/sprite_150x.png
index 5e9e4ab3a..3e4fa0109 100644
Binary files a/Telegram/SourceFiles/art/sprite_150x.png and b/Telegram/SourceFiles/art/sprite_150x.png differ
diff --git a/Telegram/SourceFiles/boxes/aboutbox.cpp b/Telegram/SourceFiles/boxes/aboutbox.cpp
index 81e107af3..55d438b9e 100644
--- a/Telegram/SourceFiles/boxes/aboutbox.cpp
+++ b/Telegram/SourceFiles/boxes/aboutbox.cpp
@@ -80,7 +80,7 @@ void AboutBox::paintEvent(QPaintEvent *e) {
 			// fill bg
 			p.fillRect(0, 0, _width, _height, st::boxBG->b);
 
-			p.drawPixmap(QPoint((_width - st::aboutIcon.width()) / 2, st::aboutIconTop), App::sprite(), st::aboutIcon);
+			p.drawPixmap(QPoint((_width - st::aboutIcon.pxWidth()) / 2, st::aboutIconTop), App::sprite(), st::aboutIcon);
 
 			p.setPen(st::black->p);
 			p.setFont(st::aboutHeaderFont->f);
diff --git a/Telegram/SourceFiles/boxes/addparticipantbox.cpp b/Telegram/SourceFiles/boxes/addparticipantbox.cpp
index 9a6cf34c4..9a493f7ef 100644
--- a/Telegram/SourceFiles/boxes/addparticipantbox.cpp
+++ b/Telegram/SourceFiles/boxes/addparticipantbox.cpp
@@ -151,7 +151,7 @@ void AddParticipantInner::paintDialog(QPainter &p, DialogRow *row, bool sel) {
 	data->name.drawElided(p, left + st::profileListPhotoSize + st::profileListPadding.width(), st::profileListNameTop, width() - st::participantDelta - st::profileListPadding.width() * 2 - st::profileListPhotoSize - st::profileListPadding.width() * 2);
 
 	if (sel || data->check) {
-		p.drawPixmap(QPoint(width() - st::profileCheckRect.width() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::profileCheckRect.height()) / 2 - st::profileCheckDeltaY), App::sprite(), (data->check ? st::profileCheckActiveRect : st::profileCheckRect));
+		p.drawPixmap(QPoint(width() - st::profileCheckRect.pxWidth() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::profileCheckRect.pxHeight()) / 2 - st::profileCheckDeltaY), App::sprite(), (data->check ? st::profileCheckActiveRect : st::profileCheckRect));
 	}
 
 	p.setFont(st::profileSubFont->f);
diff --git a/Telegram/SourceFiles/boxes/contactsbox.cpp b/Telegram/SourceFiles/boxes/contactsbox.cpp
index 871583cd2..07ce2c443 100644
--- a/Telegram/SourceFiles/boxes/contactsbox.cpp
+++ b/Telegram/SourceFiles/boxes/contactsbox.cpp
@@ -121,10 +121,10 @@ void ContactsInner::paintDialog(QPainter &p, DialogRow *row, bool sel) {
 	p.drawPixmap(left, st::profileListPadding.height(), user->photo->pix(st::profileListPhotoSize));
 
 	p.setPen(st::profileListNameColor->p);
-	data->name.drawElided(p, left + st::profileListPhotoSize + st::participantDelta, st::profileListNameTop, width() - st::profileListPadding.width() - st::profileListPhotoSize - st::profileListPadding.width() - st::participantDelta - st::scrollDef.width - st::contactsImg.width());
+	data->name.drawElided(p, left + st::profileListPhotoSize + st::participantDelta, st::profileListNameTop, width() - st::profileListPadding.width() - st::profileListPhotoSize - st::profileListPadding.width() - st::participantDelta - st::scrollDef.width - st::contactsImg.pxWidth());
 
 	if (sel) {
-		p.drawPixmap(QPoint(width() - st::contactsImg.width() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::contactsImg.height()) / 2 - st::profileCheckDeltaY), App::sprite(), st::contactsImg);
+		p.drawPixmap(QPoint(width() - st::contactsImg.pxWidth() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::contactsImg.pxHeight()) / 2 - st::profileCheckDeltaY), App::sprite(), st::contactsImg);
 	}
 
 	p.setFont(st::profileSubFont->f);
diff --git a/Telegram/SourceFiles/boxes/emojibox.cpp b/Telegram/SourceFiles/boxes/emojibox.cpp
index 6f5312d2a..133d79ddc 100644
--- a/Telegram/SourceFiles/boxes/emojibox.cpp
+++ b/Telegram/SourceFiles/boxes/emojibox.cpp
@@ -150,7 +150,7 @@ void EmojiBox::paintEvent(QPaintEvent *e) {
 				for (BlockRow::const_iterator j = i->cbegin(), en = i->cend(); j != en; ++j) {
 					if (j->emoji) {
 						QPoint pos(left + (st::emojiReplaceWidth - st::emojiSize) / 2, top + (st::emojiReplaceHeight - _blockHeight) / 2);
-						p.drawPixmap(pos, App::emojis(), QRect(j->emoji->x, j->emoji->y, st::emojiSize, st::emojiSize));
+						p.drawPixmap(pos, App::emojis(), QRect(j->emoji->x, j->emoji->y, st::emojiImgSize, st::emojiImgSize));
 					}
 					QRect trect(left, top + (st::emojiReplaceHeight + _blockHeight) / 2 - st::emojiTextFont->height, st::emojiReplaceWidth, st::emojiTextFont->height);
 					p.drawText(trect, j->text, QTextOption(Qt::AlignHCenter | Qt::AlignTop));
diff --git a/Telegram/SourceFiles/boxes/newgroupbox.cpp b/Telegram/SourceFiles/boxes/newgroupbox.cpp
index bc664fd8b..5fa27274d 100644
--- a/Telegram/SourceFiles/boxes/newgroupbox.cpp
+++ b/Telegram/SourceFiles/boxes/newgroupbox.cpp
@@ -129,10 +129,10 @@ void NewGroupInner::paintDialog(QPainter &p, DialogRow *row, bool sel) {
 	} else {
 		p.setPen(st::profileListNameColor->p);
 	}
-	data->name.drawElided(p, left + st::profileListPhotoSize + st::participantDelta, st::profileListNameTop, width() - st::profileListPadding.width() - st::profileListPhotoSize - st::profileListPadding.width() - st::participantDelta - st::scrollDef.width - st::profileCheckRect.width());
+	data->name.drawElided(p, left + st::profileListPhotoSize + st::participantDelta, st::profileListNameTop, width() - st::profileListPadding.width() - st::profileListPhotoSize - st::profileListPadding.width() - st::participantDelta - st::scrollDef.width - st::profileCheckRect.pxWidth());
 
 	if (sel || data->check) {
-		p.drawPixmap(QPoint(width() - st::profileCheckRect.width() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::profileCheckRect.height()) / 2 - st::profileCheckDeltaY), App::sprite(), (data->check ? st::profileCheckActiveRect : st::profileCheckRect));
+		p.drawPixmap(QPoint(width() - st::profileCheckRect.pxWidth() - st::profileCheckDeltaX, st::profileListPadding.height() + (st::profileListPhotoSize - st::profileCheckRect.pxHeight()) / 2 - st::profileCheckDeltaY), App::sprite(), (data->check ? st::profileCheckActiveRect : st::profileCheckRect));
 	}
 
 	p.setFont(st::profileSubFont->f);
diff --git a/Telegram/SourceFiles/dropdown.cpp b/Telegram/SourceFiles/dropdown.cpp
index 039d01620..ba8773790 100644
--- a/Telegram/SourceFiles/dropdown.cpp
+++ b/Telegram/SourceFiles/dropdown.cpp
@@ -348,7 +348,7 @@ void EmojiPanInner::paintEvent(QPaintEvent *e) {
 				p.drawRoundedRect(QRect(w, st::emojiPanSize), st::emojiPanRound, st::emojiPanRound);
 				p.setOpacity(1);
 			}
-			QRect r(_emojis[index]->x, _emojis[index]->y, st::emojiSize, st::emojiSize);
+			QRect r(_emojis[index]->x, _emojis[index]->y, st::emojiImgSize, st::emojiImgSize);
 			p.drawPixmap(w + QPoint((st::emojiPanSize.width() - st::emojiSize) / 2, (st::emojiPanSize.height() - st::emojiSize) / 2), App::emojis(), r);
 		}
 	}
diff --git a/Telegram/SourceFiles/gui/boxshadow.cpp b/Telegram/SourceFiles/gui/boxshadow.cpp
index c3751bb13..245c8e514 100644
--- a/Telegram/SourceFiles/gui/boxshadow.cpp
+++ b/Telegram/SourceFiles/gui/boxshadow.cpp
@@ -19,7 +19,7 @@ Copyright (c) 2014 John Preston, https://tdesktop.com
 
 #include "boxshadow.h"
 
-BoxShadow::BoxShadow(const style::rect &topLeft) : _size(topLeft.width()) {
+BoxShadow::BoxShadow(const style::rect &topLeft) : _size(topLeft.width() / cIntRetinaFactor()) {
 	QImage cornersImage(_size * 2, _size * 2, QImage::Format_ARGB32_Premultiplied);
 	{
 		QPainter p(&cornersImage);
diff --git a/Telegram/SourceFiles/gui/emoji_config.cpp b/Telegram/SourceFiles/gui/emoji_config.cpp
index 8d313f193..7c067590b 100644
--- a/Telegram/SourceFiles/gui/emoji_config.cpp
+++ b/Telegram/SourceFiles/gui/emoji_config.cpp
@@ -26,7 +26,9 @@ namespace {
 void initEmoji() {
 	EmojiData *toFill = emojis = (EmojiData*)emojisData;
 
-	switch (cScale()) {
+    DBIScale emojiForScale = cRetina() ? dbisTwo : cScale();
+    
+	switch (emojiForScale) {
 
 	case dbisOne:
 		new (toFill++) EmojiData(176, 0, 169, 0, 1);
diff --git a/Telegram/SourceFiles/gui/flatcheckbox.cpp b/Telegram/SourceFiles/gui/flatcheckbox.cpp
index bf3a538b8..9382c0c05 100644
--- a/Telegram/SourceFiles/gui/flatcheckbox.cpp
+++ b/Telegram/SourceFiles/gui/flatcheckbox.cpp
@@ -28,7 +28,7 @@ FlatCheckbox::FlatCheckbox(QWidget *parent, const QString &text, bool checked, c
 	setCursor(_st.cursor);
 	int32 w = _st.width, h = _st.height;
 	if (w <= 0) w = _st.textLeft + _st.font->m.width(_text) + 1;
-	if (h <= 0) h = qMax(_st.font->height, _st.imageRect.height());
+	if (h <= 0) h = qMax(_st.font->height, _st.imageRect.pxHeight());
 	resize(QSize(w, h));
 }
 
diff --git a/Telegram/SourceFiles/gui/flatinput.cpp b/Telegram/SourceFiles/gui/flatinput.cpp
index 9b6fb08eb..ab7851322 100644
--- a/Telegram/SourceFiles/gui/flatinput.cpp
+++ b/Telegram/SourceFiles/gui/flatinput.cpp
@@ -134,7 +134,7 @@ void FlatInput::paintEvent(QPaintEvent *e) {
 			p.drawRect(i, i, width() - 2 * i - 1, height() - 2 * i - 1);
 		}
 	}
-	if (_st.imgRect.width()) {
+	if (_st.imgRect.pxWidth()) {
 		p.drawPixmap(_st.imgPos, App::sprite(), _st.imgRect);
 	}
 
diff --git a/Telegram/SourceFiles/gui/images.cpp b/Telegram/SourceFiles/gui/images.cpp
index b9e807cad..6c0785ae8 100644
--- a/Telegram/SourceFiles/gui/images.cpp
+++ b/Telegram/SourceFiles/gui/images.cpp
@@ -60,18 +60,16 @@ const QPixmap &Image::pix(int32 w, int32 h) const {
 	checkload();
 
 	if (w <= 0 || !width() || !height()) {
-        w = width() * cRetinaFactor();
+        w = width() * cIntRetinaFactor();
     } else if (cRetina()) {
-        w *= cRetinaFactor();
-        h *= cRetinaFactor();
+        w *= cIntRetinaFactor();
+        h *= cIntRetinaFactor();
     }
 	uint64 k = (uint64(w) << 32) | uint64(h);
 	Sizes::const_iterator i = _sizesCache.constFind(k);
 	if (i == _sizesCache.cend()) {
 		QPixmap p(pixNoCache(w, h, true));
-        if (cRetina()) {
-            p.setDevicePixelRatio(cRetinaFactor());
-        }
+        if (cRetina()) p.setDevicePixelRatio(cRetinaFactor());
 		i = _sizesCache.insert(k, p);
 		if (!p.isNull()) {
 			globalAquiredSize += int64(p.width()) * p.height() * 4;
diff --git a/Telegram/SourceFiles/gui/style_core.h b/Telegram/SourceFiles/gui/style_core.h
index 746009829..3148f13e1 100644
--- a/Telegram/SourceFiles/gui/style_core.h
+++ b/Telegram/SourceFiles/gui/style_core.h
@@ -200,6 +200,32 @@ inline bool operator!=(const Font &a, const Font &b) {
 	typedef float64 number;
 	typedef QString string;
 	typedef QRect rect;
+    class sprite : public rect {
+    public:
+        sprite() {
+        }
+        sprite(int left, int top, int width, int height) : rect(left, top, width, height) {
+        }
+        inline int pxWidth() const {
+            return rect::width() / cIntRetinaFactor();
+        }
+        inline int pxHeight() const {
+            return rect::height() / cIntRetinaFactor();
+        }
+        inline QSize pxSize() const {
+            return rect::size() / cIntRetinaFactor();
+        }
+    private:
+        inline int width() const {
+            return rect::width();
+        }
+        inline int height() const {
+            return rect::height();
+        }
+        inline QSize size() const {
+            return rect::size();
+        }
+    };
 	typedef QPoint point;
 	typedef QSize size;
 	typedef anim::transition transition;
diff --git a/Telegram/SourceFiles/gui/text.cpp b/Telegram/SourceFiles/gui/text.cpp
index 75666f256..6f5b71f1f 100644
--- a/Telegram/SourceFiles/gui/text.cpp
+++ b/Telegram/SourceFiles/gui/text.cpp
@@ -1405,7 +1405,7 @@ public:
 							}
 						}
 					}
-					_p->drawPixmap(QPoint((glyphX + int(st::emojiPadding)).toInt(), _y + _yDelta + emojiY), App::emojis(), QRect(static_cast<EmojiBlock*>(currentBlock)->emoji->x, static_cast<EmojiBlock*>(currentBlock)->emoji->y, st::emojiSize, st::emojiSize));
+					_p->drawPixmap(QPoint((glyphX + int(st::emojiPadding)).toInt(), _y + _yDelta + emojiY), App::emojis(), QRect(static_cast<EmojiBlock*>(currentBlock)->emoji->x, static_cast<EmojiBlock*>(currentBlock)->emoji->y, st::emojiImgSize, st::emojiImgSize));
 //				} else if (_p && currentBlock->type() == TextBlockSkip) { // debug
 //					_p->fillRect(QRect(x.toInt(), _y, currentBlock->width(), static_cast<SkipBlock*>(currentBlock)->height()), QColor(0, 0, 0, 32));
 				}
diff --git a/Telegram/SourceFiles/gui/text.h b/Telegram/SourceFiles/gui/text.h
index d547dfef9..20a0bb765 100644
--- a/Telegram/SourceFiles/gui/text.h
+++ b/Telegram/SourceFiles/gui/text.h
@@ -18,7 +18,6 @@ Copyright (c) 2014 John Preston, https://tdesktop.com
 #pragma once
 
 #include "gui/emoji_config.h"
-#include "gui/style_core.h"
 
 #include "../../../QtStatic/qtbase/src/gui/text/qfontengine_p.h"
 
diff --git a/Telegram/SourceFiles/history.cpp b/Telegram/SourceFiles/history.cpp
index 2f176661e..29941ab06 100644
--- a/Telegram/SourceFiles/history.cpp
+++ b/Telegram/SourceFiles/history.cpp
@@ -1522,7 +1522,7 @@ void HistoryPhoto::draw(QPainter &p, const HistoryItem *parent, const QString &t
 	int32 dateX = _maxw - timeWidth - st::msgDateImgDelta - 2 * st::msgDateImgPadding.x();
 	int32 dateY = _height - st::msgDateFont->height - 2 * st::msgDateImgPadding.y() - st::msgDateImgDelta;
 	if (parent->out()) {
-		dateX -= st::msgCheckRect.width() + st::msgDateImgCheckSpace;
+		dateX -= st::msgCheckRect.pxWidth() + st::msgDateImgCheckSpace;
 	}
 	int32 dateW = _maxw - dateX - st::msgDateImgDelta;
 	int32 dateH = _height - dateY - st::msgDateImgDelta;
@@ -1532,7 +1532,7 @@ void HistoryPhoto::draw(QPainter &p, const HistoryItem *parent, const QString &t
 	p.setPen(st::msgDateImgColor->p);
 	p.drawText(dateX + st::msgDateImgPadding.x(), dateY + st::msgDateImgPadding.y() + st::msgDateFont->ascent, time);
 	if (out) {
-		QPoint iconPos(dateX - 2 + dateW - st::msgDateImgCheckSpace - st::msgCheckRect.width(), dateY + (dateH - st::msgCheckRect.height()) / 2);
+		QPoint iconPos(dateX - 2 + dateW - st::msgDateImgCheckSpace - st::msgCheckRect.pxWidth(), dateY + (dateH - st::msgCheckRect.pxHeight()) / 2);
 		const QRect *iconRect;
 		if (parent->id > 0) {
 			if (parent->unread()) {
@@ -1735,7 +1735,7 @@ void HistoryVideo::draw(QPainter &p, const HistoryItem *parent, const QString &t
 
 	int32 tleft = st::mediaPadding.left() + st::mediaThumbSize + st::mediaPadding.right();
 	int32 twidth = width - tleft - st::mediaPadding.right();
-	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
+	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
 	int32 secondwidth = width - tleft - fullTimeWidth;
 
 	p.setFont(st::mediaFont->f);
@@ -1775,7 +1775,7 @@ void HistoryVideo::draw(QPainter &p, const HistoryItem *parent, const QString &t
 
 	p.drawText(width + st::msgDateDelta.x() - fullTimeWidth + st::msgDateSpace, _height - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgDateFont->descent, time);
 	if (out) {
-		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.width(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.height());
+		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.pxWidth(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.pxHeight());
 		const QRect *iconRect;
 		if (parent->id > 0) {
 			if (parent->unread()) {
@@ -1857,7 +1857,7 @@ void HistoryAudio::draw(QPainter &p, const HistoryItem *parent, const QString &t
 
 	int32 tleft = st::mediaPadding.left() + st::mediaThumbSize + st::mediaPadding.right();
 	int32 twidth = width - tleft - st::mediaPadding.right();
-	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
+	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
 	int32 secondwidth = width - tleft - fullTimeWidth;
 
 	p.setFont(st::mediaFont->f);
@@ -1897,7 +1897,7 @@ void HistoryAudio::draw(QPainter &p, const HistoryItem *parent, const QString &t
 
 	p.drawText(width + st::msgDateDelta.x() - fullTimeWidth + st::msgDateSpace, _height - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgDateFont->descent, time);
 	if (out) {
-		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.width(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.height());
+		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.pxWidth(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.pxHeight());
 		const QRect *iconRect;
 		if (parent->id > 0) {
 			if (parent->unread()) {
@@ -2048,7 +2048,8 @@ void HistoryDocument::draw(QPainter &p, const HistoryItem *parent, const QString
 	p.fillRect(0, _height, width, st::msgShadow, shadow->b);
 
 	if (_thumbw) {
-		p.drawPixmap(QPoint(st::mediaPadding.left(), st::mediaPadding.top()), data->thumb->pix(_thumbw), QRect(_thumbx, _thumby, st::mediaThumbSize, st::mediaThumbSize));
+        int32 rf(cIntRetinaFactor());
+		p.drawPixmap(QPoint(st::mediaPadding.left(), st::mediaPadding.top()), data->thumb->pix(_thumbw), QRect(_thumbx * rf, _thumby * rf, st::mediaThumbSize * rf, st::mediaThumbSize * rf));
 	} else {
 		p.drawPixmap(QPoint(st::mediaPadding.left(), st::mediaPadding.top()), App::sprite(), (out ? st::mediaDocOutImg : st::mediaDocInImg));
 	}
@@ -2058,7 +2059,7 @@ void HistoryDocument::draw(QPainter &p, const HistoryItem *parent, const QString
 
 	int32 tleft = st::mediaPadding.left() + st::mediaThumbSize + st::mediaPadding.right();
 	int32 twidth = width - tleft - st::mediaPadding.right();
-	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
+	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
 	int32 secondwidth = width - tleft - fullTimeWidth;
 
 	p.setFont(st::mediaFont->f);
@@ -2102,7 +2103,7 @@ void HistoryDocument::draw(QPainter &p, const HistoryItem *parent, const QString
 
 	p.drawText(width + st::msgDateDelta.x() - fullTimeWidth + st::msgDateSpace, _height - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgDateFont->descent, time);
 	if (out) {
-		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.width(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.height());
+		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.pxWidth(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.pxHeight());
 		const QRect *iconRect;
 		if (parent->id > 0) {
 			if (parent->unread()) {
@@ -2197,7 +2198,7 @@ HistoryContact::HistoryContact(int32 userId, const QString &first, const QString
 
 void HistoryContact::initDimensions(const HistoryItem *parent, int32 timeWidth) {
 	int32 tleft = st::mediaPadding.left() + st::mediaThumbSize + st::mediaPadding.right();
-	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (parent->out() ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
+	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (parent->out() ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
 	if (name.maxWidth() + tleft + fullTimeWidth > _maxw) {
 		_maxw = name.maxWidth() + tleft + fullTimeWidth;
 	}
@@ -2256,7 +2257,7 @@ void HistoryContact::draw(QPainter &p, const HistoryItem *parent, const QString
 
 	int32 tleft = st::mediaPadding.left() + st::mediaThumbSize + st::mediaPadding.right();
 	int32 twidth = width - tleft - st::mediaPadding.right();
-	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
+	int32 fullTimeWidth = timeWidth + st::msgDateSpace + (out ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) + st::msgPadding.right() - st::msgDateDelta.x();
 	int32 secondwidth = width - tleft - fullTimeWidth;
 
 	p.setFont(st::mediaFont->f);
@@ -2279,7 +2280,7 @@ void HistoryContact::draw(QPainter &p, const HistoryItem *parent, const QString
 
 	p.drawText(width + st::msgDateDelta.x() - fullTimeWidth + st::msgDateSpace, _height - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgDateFont->descent, time);
 	if (out) {
-		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.width(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.height());
+		QPoint iconPos(width + 5 - st::msgPadding.right() - st::msgCheckRect.pxWidth(), _height + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.pxHeight());
 		const QRect *iconRect;
 		if (parent->id > 0) {
 			if (parent->unread()) {
@@ -2383,7 +2384,7 @@ void HistoryMessage::initDimensions(const QString &text) {
 		_maxw = media->maxWidth();
 		_minh = media->height();
 	} else {
-		timeWidth += st::msgDateSpace + (out() ? st::msgDateCheckSpace + st::msgCheckRect.width() : 0) - st::msgDateDelta.x();
+		timeWidth += st::msgDateSpace + (out() ? st::msgDateCheckSpace + st::msgCheckRect.pxWidth() : 0) - st::msgDateDelta.x();
 		_text.setText(st::msgFont, text + textcmdSkipBlock(timeWidth, st::msgDateFont->height - st::msgDateDelta.y()), _historyTextOptions);
 		_maxw = _text.maxWidth();
 		_minh = _text.minHeight();
@@ -2470,7 +2471,7 @@ void HistoryMessage::draw(QPainter &p, uint32 selection) const {
 
 		p.drawText(r.right() - st::msgPadding.right() + st::msgDateDelta.x() - timeWidth + st::msgDateSpace, r.bottom() - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgDateFont->descent, time);
 		if (_out) {
-			QPoint iconPos(r.right() + 5 - st::msgPadding.right() - st::msgCheckRect.width(), r.bottom() + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.height());
+			QPoint iconPos(r.right() + 5 - st::msgPadding.right() - st::msgCheckRect.pxWidth(), r.bottom() + 1 - st::msgPadding.bottom() + st::msgDateDelta.y() - st::msgCheckRect.pxHeight());
 			const QRect *iconRect;
 			if (id > 0) {
 				if (unread()) {
diff --git a/Telegram/SourceFiles/historywidget.cpp b/Telegram/SourceFiles/historywidget.cpp
index 647484984..5728114fc 100644
--- a/Telegram/SourceFiles/historywidget.cpp
+++ b/Telegram/SourceFiles/historywidget.cpp
@@ -72,7 +72,7 @@ void HistoryList::paintEvent(QPaintEvent *e) {
 	}
 
 	if (hist->isEmpty()) {
-		QPoint dogPos((width() - st::msgDogImg.width()) / 2, ((height() - st::msgDogImg.height()) * 4) / 9);
+		QPoint dogPos((width() - st::msgDogImg.pxWidth()) / 2, ((height() - st::msgDogImg.pxHeight()) * 4) / 9);
 		p.drawPixmap(dogPos, App::sprite(), st::msgDogImg);
 	} else {
 		adjustCurrent(r.top());
@@ -1746,20 +1746,7 @@ void HistoryWidget::historyToDown(History *history) {
 }
 
 void HistoryWidget::historyWasRead(bool force) {
-	if (histReadRequestId || !hist || !force && (!hist->unreadCount || !hist->unreadLoaded)) return;
-	hist->inboxRead(true);
-	histReadRequestId = MTP::send(MTPmessages_ReadHistory(histPeer->input, MTP_int(0), MTP_int(0)), rpcDone(&HistoryWidget::partWasRead, histPeer));
-}
-
-void HistoryWidget::partWasRead(PeerData *peer, const MTPmessages_AffectedHistory &result) {
-	const MTPDmessages_affectedHistory &d(result.c_messages_affectedHistory());
-	App::main()->updUpdated(d.vpts.v, 0, 0, d.vseq.v);
-
-	histReadRequestId = 0;
-	int32 offset = d.voffset.v;
-	if (!MTP::authedId() || offset <= 0) return;
-
-	histReadRequestId = MTP::send(MTPmessages_ReadHistory(peer->input, MTP_int(0), MTP_int(offset)), rpcDone(&HistoryWidget::partWasRead, peer));
+    App::main()->readServerHistory(hist, force);
 }
 
 bool HistoryWidget::messagesFailed(const RPCError &e, mtpRequestId requestId) {
@@ -1906,9 +1893,7 @@ void HistoryWidget::onVisibleChanged() {
 	QTimer::singleShot(0, this, SLOT(onListScroll()));
 }
 
-QString HistoryWidget::prepareMessage() {
-	QString result = _field.getText();
-	
+QString HistoryWidget::prepareMessage(QString result) {
 	result = result.replace('\t', qsl(" "));
 
 	result = result.replace(" --", QString::fromUtf8(" \xe2\x80\x94"));
@@ -1922,7 +1907,7 @@ QString HistoryWidget::prepareMessage() {
 void HistoryWidget::onSend() {
 	if (!hist) return;
 
-	QString text = prepareMessage();
+	QString text = prepareMessage(_field.getText());
 	if (!text.isEmpty()) {
 		MsgId newId = clientMsgId();
 		uint64 randomId = MTP::nonce<uint64>();
@@ -2314,7 +2299,7 @@ void HistoryWidget::paintTopBar(QPainter &p, float64 over, int32 decreaseWidth)
 
 	if (!decreaseWidth) {
 		p.setOpacity(st::topBarForwardAlpha + (1 - st::topBarForwardAlpha) * over);
-		p.drawPixmap(QPoint(width() - (st::topBarForwardPadding.right() + st::topBarForwardImg.width()) / 2, (st::topBarHeight - st::topBarForwardImg.height()) / 2), App::sprite(), st::topBarForwardImg);
+		p.drawPixmap(QPoint(width() - (st::topBarForwardPadding.right() + st::topBarForwardImg.pxWidth()) / 2, (st::topBarHeight - st::topBarForwardImg.pxHeight()) / 2), App::sprite(), st::topBarForwardImg);
 	}
 }
 
@@ -2790,11 +2775,11 @@ void HistoryWidget::paintEvent(QPaintEvent *e) {
 				p.fillRect(0, _field.y() - st::sendPadding, width(), _field.height() + 2 * st::sendPadding, st::taMsgField.bgColor->b);
 			}
 		} else {
-			QPoint dogPos((width() - st::msgDogImg.width()) / 2, ((height() - _field.height() - 2 * st::sendPadding - st::msgDogImg.height()) * 4) / 9);
+			QPoint dogPos((width() - st::msgDogImg.pxWidth()) / 2, ((height() - _field.height() - 2 * st::sendPadding - st::msgDogImg.pxHeight()) * 4) / 9);
 			p.drawPixmap(dogPos, App::sprite(), st::msgDogImg);
 
 			int32 pointsCount = 8, w = pointsCount * (st::introPointWidth + 2 * st::introPointDelta), h = st::introPointHeight;
-			int32 pointsLeft = (width() - w) / 2 + st::introPointDelta - st::introPointLeft, pointsTop = dogPos.y() + (st::msgDogImg.height() * 6) / 5;
+			int32 pointsLeft = (width() - w) / 2 + st::introPointDelta - st::introPointLeft, pointsTop = dogPos.y() + (st::msgDogImg.pxHeight() * 6) / 5;
 
 			int32 curPoint = histRequestsCount % pointsCount;
 
diff --git a/Telegram/SourceFiles/historywidget.h b/Telegram/SourceFiles/historywidget.h
index 017d91058..363e8589b 100644
--- a/Telegram/SourceFiles/historywidget.h
+++ b/Telegram/SourceFiles/historywidget.h
@@ -311,6 +311,8 @@ public:
 	void noSelectingScroll();
 
 	bool touchScroll(const QPoint &delta);
+    
+	QString prepareMessage(QString text);
 
 	~HistoryWidget();
 
@@ -365,7 +367,6 @@ public slots:
 private:
 
 	bool messagesFailed(const RPCError &error, mtpRequestId requestId);
-	void partWasRead(PeerData *peer, const MTPmessages_AffectedHistory &result);
 	void updateListSize(int32 addToY = 0, bool initial = false);
 	void addMessagesToFront(const QVector<MTPMessage> &messages);
 	void chatLoaded(const MTPmessages_ChatFull &res);
@@ -375,8 +376,6 @@ private:
 
 	void updateDragAreas();
 
-	QString prepareMessage();
-
 	int32 histOffset, histCount, histReadRequestId;
 	int32 histRequestsCount;
 	PeerData *histPeer, *_activePeer;
diff --git a/Telegram/SourceFiles/intro/introsignup.cpp b/Telegram/SourceFiles/intro/introsignup.cpp
index 9b597eb4d..29986a1be 100644
--- a/Telegram/SourceFiles/intro/introsignup.cpp
+++ b/Telegram/SourceFiles/intro/introsignup.cpp
@@ -124,7 +124,7 @@ void IntroSignup::paintEvent(QPaintEvent *e) {
 
 void IntroSignup::resizeEvent(QResizeEvent *e) {
 	textRect = QRect((width() - st::introTextSize.width()) / 2, 0, st::introTextSize.width(), st::introTextSize.height());
-	_phLeft = (width() - st::setPhotoImg.width()) / 2;
+	_phLeft = (width() - st::setPhotoImg.pxWidth()) / 2;
 	_phTop = st::introHeaderFont->height + st::introFinishSkip;
 	if (e->oldSize().width() != width()) {
 		int sumNext = st::btnIntroNext.width - st::btnIntroBack.width - st::btnIntroSep;
@@ -132,7 +132,7 @@ void IntroSignup::resizeEvent(QResizeEvent *e) {
 	}
 	if (e->oldSize().width() != width()) {
 		next.move((width() - next.width()) / 2, st::introSize.height() - st::btnIntroNext.height);
-		first.move((width() - first.width()) / 2, _phTop + st::setPhotoImg.height() + st::introFinishSkip);
+		first.move((width() - first.width()) / 2, _phTop + st::setPhotoImg.pxHeight() + st::introFinishSkip);
 		last.move((width() - last.width()) / 2, first.y() + first.height() + st::introFinishSkip);
 	}
 }
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index 51177d996..457d2bda5 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -496,16 +496,52 @@ void MainWidget::clearSelectedItems() {
 	history.onClearSelected();
 }
 
-QRect MainWidget::rectForTitleAnim() const {
-	int w = width();
-	w -= history.x() + st::sysBtnDelta * 2 + st::sysCls.img.width() + st::sysRes.img.width() + st::sysMin.img.width();
-	return QRect(history.x(), 0, w, App::wnd()->getTitle()->height());
-}
-
 DialogsIndexed &MainWidget::contactsList() {
 	return dialogs.contactsList();
 }
 
+void MainWidget::sendMessage(History *hist, const QString &text) {
+    readServerHistory(hist);
+    QString msg = history.prepareMessage(text);
+	if (!msg.isEmpty()) {
+		MsgId newId = clientMsgId();
+		uint64 randomId = MTP::nonce<uint64>();
+        
+		App::historyRegRandom(randomId, newId);
+        
+		MTPstring msgText(MTP_string(msg));
+		hist->addToBack(MTP_message(MTP_int(newId), MTP_int(MTP::authedId()), App::peerToMTP(hist->peer->id), MTP_bool(true), MTP_bool(true), MTP_int(unixtime()), msgText, MTP_messageMediaEmpty()));
+		historyToDown(hist);
+		if (history.peer() == hist->peer) {
+            history.peerMessagesUpdated();
+        }
+        
+		MTP::send(MTPmessages_SendMessage(hist->peer->input, msgText, MTP_long(randomId)), App::main()->rpcDone(&MainWidget::sentDataReceived, randomId));
+    }
+}
+
+void MainWidget::readServerHistory(History *hist, bool force) {
+    if (!hist || (!force && (!hist->unreadCount || !hist->unreadLoaded))) return;
+    
+    ReadRequests::const_iterator i = _readRequests.constFind(hist->peer);
+    if (i == _readRequests.cend()) {
+        hist->inboxRead(true);
+        _readRequests.insert(hist->peer, MTP::send(MTPmessages_ReadHistory(hist->peer->input, MTP_int(0), MTP_int(0)), rpcDone(&MainWidget::partWasRead, hist->peer)));
+    }
+}
+
+void MainWidget::partWasRead(PeerData *peer, const MTPmessages_AffectedHistory &result) {
+	const MTPDmessages_affectedHistory &d(result.c_messages_affectedHistory());
+	App::main()->updUpdated(d.vpts.v, 0, 0, d.vseq.v);
+    
+	int32 offset = d.voffset.v;
+	if (!MTP::authedId() || offset <= 0) {
+        _readRequests.remove(peer);
+    } else {
+        _readRequests[peer] = MTP::send(MTPmessages_ReadHistory(peer->input, MTP_int(0), MTP_int(offset)), rpcDone(&MainWidget::partWasRead, peer));
+    }
+}
+
 void MainWidget::videoLoadProgress(mtpFileLoader *loader) {
 	VideoData *video = App::video(loader->objId());
 	if (video->loader) {
@@ -619,7 +655,7 @@ void MainWidget::onParentResize(const QSize &newSize) {
 }
 
 void MainWidget::updateOnlineDisplay() {
-	history.updateOnlineDisplay(history.x(), width() - history.x() - st::sysBtnDelta * 2 - st::sysCls.img.width() - st::sysRes.img.width() - st::sysMin.img.width());
+	history.updateOnlineDisplay(history.x(), width() - history.x() - st::sysBtnDelta * 2 - st::sysCls.img.pxWidth() - st::sysRes.img.pxWidth() - st::sysMin.img.pxWidth());
 	if (profile) profile->updateOnlineDisplay();
 	if (App::wnd()->settingsWidget()) App::wnd()->settingsWidget()->updateOnlineDisplay();
 }
diff --git a/Telegram/SourceFiles/mainwidget.h b/Telegram/SourceFiles/mainwidget.h
index 5a2b80a27..dc7d85db3 100644
--- a/Telegram/SourceFiles/mainwidget.h
+++ b/Telegram/SourceFiles/mainwidget.h
@@ -187,9 +187,11 @@ public:
 	void deleteSelectedItems();
 	void clearSelectedItems();
 
-	QRect rectForTitleAnim() const;
-
 	DialogsIndexed &contactsList();
+    
+    void sendMessage(History *history, const QString &text);
+    
+    void readServerHistory(History *history, bool force = true);
 
 	~MainWidget();
 
@@ -233,6 +235,8 @@ public slots:
 
 private:
 
+    void partWasRead(PeerData *peer, const MTPmessages_AffectedHistory &result);
+    
 	uint64 failedObjId;
 	QString failedFileName;
 	void loadFailed(mtpFileLoader *loader, bool started, const char *retrySlot);
@@ -278,4 +282,7 @@ private:
 
 	QSet<PeerData*> updateNotifySettingPeers;
 	QTimer updateNotifySettingTimer;
+    
+    typedef QMap<PeerData*, mtpRequestId> ReadRequests;
+    ReadRequests _readRequests;
 };
diff --git a/Telegram/SourceFiles/profilewidget.cpp b/Telegram/SourceFiles/profilewidget.cpp
index e0eac83d4..cb5769ac8 100644
--- a/Telegram/SourceFiles/profilewidget.cpp
+++ b/Telegram/SourceFiles/profilewidget.cpp
@@ -761,10 +761,10 @@ void ProfileWidget::paintTopBar(QPainter &p, float64 over, int32 decreaseWidth)
 		p.drawPixmap(a_coord.current(), 0, _animTopBarCache);
 	} else {
 		p.setOpacity(st::topBarBackAlpha + (1 - st::topBarBackAlpha) * over);
-		p.drawPixmap(QPoint(st::topBarBackPadding.left(), (st::topBarHeight - st::topBarBackImg.height()) / 2), App::sprite(), st::topBarBackImg);
+		p.drawPixmap(QPoint(st::topBarBackPadding.left(), (st::topBarHeight - st::topBarBackImg.pxHeight()) / 2), App::sprite(), st::topBarBackImg);
 		p.setFont(st::topBarBackFont->f);
 		p.setPen(st::topBarBackColor->p);
-		p.drawText(st::topBarBackPadding.left() + st::topBarBackImg.width() + st::topBarBackPadding.right(), (st::topBarHeight - st::titleFont->height) / 2 + st::titleFont->ascent, lang(peer()->chat ? lng_profile_group_info : lng_profile_info));
+		p.drawText(st::topBarBackPadding.left() + st::topBarBackImg.pxWidth() + st::topBarBackPadding.right(), (st::topBarHeight - st::titleFont->height) / 2 + st::titleFont->ascent, lang(peer()->chat ? lng_profile_group_info : lng_profile_info));
 	}
 }
 
diff --git a/Telegram/SourceFiles/pspecific_mac.cpp b/Telegram/SourceFiles/pspecific_mac.cpp
index 43c76d461..9f0cde452 100644
--- a/Telegram/SourceFiles/pspecific_mac.cpp
+++ b/Telegram/SourceFiles/pspecific_mac.cpp
@@ -112,7 +112,9 @@ void MacPrivate::notifyClicked(unsigned long long peer) {
 }
 
 void MacPrivate::notifyReplied(unsigned long long peer, const char *str) {
+    History *history = App::history(PeerId(peer));
     
+    App::main()->sendMessage(history, QString::fromUtf8(str));
 }
 
 PsMainWindow::PsMainWindow(QWidget *parent) : QMainWindow(parent),
@@ -283,7 +285,7 @@ void PsMainWindow::psInitFrameless() {
 	connect(&psUpdatedPositionTimer, SIGNAL(timeout()), this, SLOT(psSavePosition()));
 
 	if (frameless) {
-//		setWindowFlags(Qt::FramelessWindowHint);
+		//setWindowFlags(Qt::FramelessWindowHint);
 	}
 
     connect(windowHandle(), SIGNAL(windowStateChanged(Qt::WindowState)), this, SLOT(psStateChanged(Qt::WindowState)));
@@ -348,6 +350,7 @@ void PsMainWindow::psFirstShow() {
 	bool showShadows = true;
 
 	show();
+    _private.enableShadow(winId());
 	if (cWindowPos().maximized) {
 		setWindowState(Qt::WindowMaximized);
 	}
@@ -371,7 +374,7 @@ void PsMainWindow::psFirstShow() {
 }
 
 bool PsMainWindow::psHandleTitle() {
-    return true;
+    return false;
 }
 
 void PsMainWindow::psInitSysMenu() {
@@ -685,10 +688,8 @@ PsNotifyWindow::PsNotifyWindow(HistoryItem *item, int32 x, int32 y) : history(it
 alphaDuration(st::notifyFastAnim), posDuration(st::notifyFastAnim), aY(y + st::notifyHeight + st::notifyDeltaY), close(this, st::notifyClose), aOpacityFunc(st::notifyFastAnimFunc) {
     
 	int32 w = st::notifyWidth, h = st::notifyHeight;
-	QImage img(w * cRetinaFactor(), h * cRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
-    if (cRetina()) {
-        img.setDevicePixelRatio(cRetinaFactor());
-    }
+	QImage img(w * cIntRetinaFactor(), h * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
+    if (cRetina()) img.setDevicePixelRatio(cRetinaFactor());
 	img.fill(st::notifyBG->c);
     
 	{
diff --git a/Telegram/SourceFiles/pspecific_mac_p.h b/Telegram/SourceFiles/pspecific_mac_p.h
index 0e822470f..640a10957 100644
--- a/Telegram/SourceFiles/pspecific_mac_p.h
+++ b/Telegram/SourceFiles/pspecific_mac_p.h
@@ -32,6 +32,8 @@ public:
     void activateWnd(WId winId);
     void showNotify(unsigned long long peer, const char *utf8title, const char *subtitle, const char *utf8msg);
     void clearNotifies(unsigned long long peer = 0);
+    
+    void enableShadow(WId winId);
         
     virtual void activeSpaceChanged() {
     }
diff --git a/Telegram/SourceFiles/pspecific_mac_p.mm b/Telegram/SourceFiles/pspecific_mac_p.mm
index c5828bb15..0d3532bc0 100644
--- a/Telegram/SourceFiles/pspecific_mac_p.mm
+++ b/Telegram/SourceFiles/pspecific_mac_p.mm
@@ -57,7 +57,9 @@ public:
     }
     
     void onNotifyReply(NSUserNotification *notification) {
-//        notification.response
+        NSNumber *peerObj = [[notification userInfo] objectForKey:@"peer"];
+        unsigned long long peerLong = [peerObj unsignedLongLongValue];
+        wnd->notifyReplied(peerLong, [[[notification response] string] UTF8String]);
     }
     
     ~PsMacWindowData() {
@@ -165,7 +167,7 @@ void PsMacWindowPrivate::showNotify(unsigned long long peer, const char *utf8tit
     [notification setInformativeText:msg];
     [msg release];
     
-//    [notification setHasReplyButton:YES];
+    [notification setHasReplyButton:YES];
 
     [notification setSoundName:nil];
     
@@ -175,6 +177,11 @@ void PsMacWindowPrivate::showNotify(unsigned long long peer, const char *utf8tit
     [notification release];
 }
 
+void PsMacWindowPrivate::enableShadow(WId winId) {
+//    [[(NSView*)winId window] setStyleMask:NSBorderlessWindowMask];
+//    [[(NSView*)winId window] setHasShadow:YES];
+}
+
 void PsMacWindowPrivate::clearNotifies(unsigned long long peer) {
     NSUserNotificationCenter *center = [NSUserNotificationCenter defaultUserNotificationCenter];
     if (peer) {
diff --git a/Telegram/SourceFiles/settings.cpp b/Telegram/SourceFiles/settings.cpp
index c9e24dcb1..33db92f11 100644
--- a/Telegram/SourceFiles/settings.cpp
+++ b/Telegram/SourceFiles/settings.cpp
@@ -67,6 +67,7 @@ QString gLangFile;
 
 bool gRetina = false;
 float64 gRetinaFactor = 1.;
+int32 gIntRetinaFactor = 1;
 bool gCustomNotifies = false;
 
 #ifdef Q_OS_WIN
diff --git a/Telegram/SourceFiles/settings.h b/Telegram/SourceFiles/settings.h
index d69ae3df2..b0a1dd748 100644
--- a/Telegram/SourceFiles/settings.h
+++ b/Telegram/SourceFiles/settings.h
@@ -132,6 +132,7 @@ DeclareReadSetting(QString, LangFile);
 
 DeclareSetting(bool, Retina);
 DeclareSetting(float64, RetinaFactor);
+DeclareSetting(int32, IntRetinaFactor);
 DeclareSetting(bool, CustomNotifies);
 
 DeclareReadSetting(DBIPlatform, Platform);
diff --git a/Telegram/SourceFiles/settingswidget.cpp b/Telegram/SourceFiles/settingswidget.cpp
index 78da9d64b..8b27ee368 100644
--- a/Telegram/SourceFiles/settingswidget.cpp
+++ b/Telegram/SourceFiles/settingswidget.cpp
@@ -32,7 +32,7 @@ Copyright (c) 2014 John Preston, https://tdesktop.com
 
 Slider::Slider(QWidget *parent, const style::slider &st, int32 count, int32 sel) : QWidget(parent),
 _count(count), _sel(snap(sel, 0, _count)), _wasSel(_sel), _st(st), _pressed(false) {
-	resize(_st.width, _st.bar.height());
+	resize(_st.width, _st.bar.pxHeight());
 	setCursor(style::cur_pointer);
 }
 
@@ -43,7 +43,7 @@ void Slider::mousePressEvent(QMouseEvent *e) {
 
 void Slider::mouseMoveEvent(QMouseEvent *e) {
 	if (_pressed) {
-		int32 newSel = snap(qRound((_count - 1) * float64(e->pos().x() - _st.bar.width() / 2) / (width() - _st.bar.width())), 0, _count - 1);
+		int32 newSel = snap(qRound((_count - 1) * float64(e->pos().x() - _st.bar.pxWidth() / 2) / (width() - _st.bar.pxWidth())), 0, _count - 1);
 		if (newSel != _sel) {
 			_sel = newSel;
 			update();
@@ -81,7 +81,7 @@ void Slider::paintEvent(QPaintEvent *e) {
 		p.drawLine(0, i, width() - 1, i);
 	}
 
-	int32 x = qFloor(_sel * float64(width() - _st.bar.width()) / (_count - 1)), y = (height() - _st.bar.height()) / 2;
+	int32 x = qFloor(_sel * float64(width() - _st.bar.pxWidth()) / (_count - 1)), y = (height() - _st.bar.pxHeight()) / 2;
 	p.drawPixmap(QPoint(x, y), App::sprite(), _st.bar);
 }
 
@@ -135,7 +135,7 @@ SettingsInner::SettingsInner(Settings *parent) : QWidget(parent),
 	_viewEmojis(this, lang(lng_settings_view_emojis)),
 
 	_enterSend(this, qsl("send_key"), 0, lang(lng_settings_send_enter), !cCtrlEnter()),
-	_ctrlEnterSend(this, qsl("send_key"), 1, lang(lng_settings_send_ctrlenter), cCtrlEnter()),
+_ctrlEnterSend(this, qsl("send_key"), 1, lang((cPlatform() == dbipMac) ? lng_settings_send_cmdenter : lng_settings_send_ctrlenter), cCtrlEnter()),
 
 	_downloadPathWidth(st::linkFont->m.width(lang(lng_download_path_label))),
 	_dontAskDownloadPath(this, lang(lng_download_path_dont_ask), !cAskDownloadPath()),
@@ -345,36 +345,40 @@ void SettingsInner::paintEvent(QPaintEvent *e) {
 	p.drawText(_left + st::setVersionLeft, top + st::setVersionTop + st::linkFont->ascent, textToDraw);
 	top += st::setVersionHeight;
 
-	top += _workmodeTray.height() + st::setLittleSkip;
-	top += _workmodeWindow.height() + st::setSectionSkip;
-
-	top += _autoStart.height() + st::setLittleSkip;
-	top += _startMinimized.height();
-
-	p.setFont(st::setHeaderFont->f);
-	p.setPen(st::setHeaderColor->p);
-	p.drawText(_left + st::setHeaderLeft, top + st::setHeaderTop + st::setHeaderFont->ascent, lang(lng_settings_scale_label));
-	top += st::setHeaderSkip;
-	top += _dpiAutoScale.height() + st::setLittleSkip;
-
-	top += _dpiSlider.height() + st::dpiFont4->height;
-	int32 sLeft = _dpiSlider.x() + _dpiWidth1 / 2, sWidth = _dpiSlider.width();
-	float64 sStep = (sWidth - _dpiWidth1 / 2 - _dpiWidth4 / 2) / float64(dbisScaleCount - 2);
-	p.setFont(st::dpiFont1->f);
-
-	p.setPen((scaleIs(dbisOne) ? st::dpiActive : st::dpiInactive)->p);
-	p.drawText(sLeft + qRound(0 * sStep) - _dpiWidth1 / 2, top - (st::dpiFont4->height - st::dpiFont1->height) / 2 - st::dpiFont1->descent, scaleLabel(dbisOne));
-	p.setFont(st::dpiFont2->f);
-	p.setPen((scaleIs(dbisOneAndQuarter) ? st::dpiActive : st::dpiInactive)->p);
-	p.drawText(sLeft + qRound(1 * sStep) - _dpiWidth2 / 2, top - (st::dpiFont4->height - st::dpiFont2->height) / 2 - st::dpiFont2->descent, scaleLabel(dbisOneAndQuarter));
-	p.setFont(st::dpiFont3->f);
-	p.setPen((scaleIs(dbisOneAndHalf) ? st::dpiActive : st::dpiInactive)->p);
-	p.drawText(sLeft + qRound(2 * sStep) - _dpiWidth3 / 2, top - (st::dpiFont4->height - st::dpiFont3->height) / 2 - st::dpiFont3->descent, scaleLabel(dbisOneAndHalf));
-	p.setFont(st::dpiFont4->f);
-	p.setPen((scaleIs(dbisTwo) ? st::dpiActive : st::dpiInactive)->p);
-	p.drawText(sLeft + qRound(3 * sStep) - _dpiWidth4 / 2, top - (st::dpiFont4->height - st::dpiFont4->height) / 2 - st::dpiFont4->descent, scaleLabel(dbisTwo));
-	p.setFont(st::linkFont->f);
-
+    if (cPlatform() == dbipWindows) {
+        top += _workmodeTray.height() + st::setLittleSkip;
+        top += _workmodeWindow.height() + st::setSectionSkip;
+        
+        top += _autoStart.height() + st::setLittleSkip;
+        top += _startMinimized.height();
+    }
+    
+    if (!cRetina()) {
+        p.setFont(st::setHeaderFont->f);
+        p.setPen(st::setHeaderColor->p);
+        p.drawText(_left + st::setHeaderLeft, top + st::setHeaderTop + st::setHeaderFont->ascent, lang(lng_settings_scale_label));
+        top += st::setHeaderSkip;
+        top += _dpiAutoScale.height() + st::setLittleSkip;
+        
+        top += _dpiSlider.height() + st::dpiFont4->height;
+        int32 sLeft = _dpiSlider.x() + _dpiWidth1 / 2, sWidth = _dpiSlider.width();
+        float64 sStep = (sWidth - _dpiWidth1 / 2 - _dpiWidth4 / 2) / float64(dbisScaleCount - 2);
+        p.setFont(st::dpiFont1->f);
+        
+        p.setPen((scaleIs(dbisOne) ? st::dpiActive : st::dpiInactive)->p);
+        p.drawText(sLeft + qRound(0 * sStep) - _dpiWidth1 / 2, top - (st::dpiFont4->height - st::dpiFont1->height) / 2 - st::dpiFont1->descent, scaleLabel(dbisOne));
+        p.setFont(st::dpiFont2->f);
+        p.setPen((scaleIs(dbisOneAndQuarter) ? st::dpiActive : st::dpiInactive)->p);
+        p.drawText(sLeft + qRound(1 * sStep) - _dpiWidth2 / 2, top - (st::dpiFont4->height - st::dpiFont2->height) / 2 - st::dpiFont2->descent, scaleLabel(dbisOneAndQuarter));
+        p.setFont(st::dpiFont3->f);
+        p.setPen((scaleIs(dbisOneAndHalf) ? st::dpiActive : st::dpiInactive)->p);
+        p.drawText(sLeft + qRound(2 * sStep) - _dpiWidth3 / 2, top - (st::dpiFont4->height - st::dpiFont3->height) / 2 - st::dpiFont3->descent, scaleLabel(dbisOneAndHalf));
+        p.setFont(st::dpiFont4->f);
+        p.setPen((scaleIs(dbisTwo) ? st::dpiActive : st::dpiInactive)->p);
+        p.drawText(sLeft + qRound(3 * sStep) - _dpiWidth4 / 2, top - (st::dpiFont4->height - st::dpiFont4->height) / 2 - st::dpiFont4->descent, scaleLabel(dbisTwo));
+        p.setFont(st::linkFont->f);
+    }
+    
 	if (_self) {
 		// chat options
 		p.setFont(st::setHeaderFont->f);
@@ -451,16 +455,19 @@ void SettingsInner::resizeEvent(QResizeEvent *e) {
 	_restartNow.move(_left + st::setWidth - _restartNow.width(), top + st::setVersionTop);
 	top += st::setVersionHeight;
 
-	_workmodeTray.move(_left, top); top += _workmodeTray.height() + st::setLittleSkip;
-	_workmodeWindow.move(_left, top); top += _workmodeWindow.height() + st::setSectionSkip;
-
-	_autoStart.move(_left, top); top += _autoStart.height() + st::setLittleSkip;
-	_startMinimized.move(_left, top); top += _startMinimized.height();
-
-	top += st::setHeaderSkip;
-	_dpiAutoScale.move(_left, top); top += _dpiAutoScale.height() + st::setLittleSkip;
-	_dpiSlider.move(_left, top); top += _dpiSlider.height() + st::dpiFont4->height;
-
+    if (cPlatform() == dbipWindows) {
+        _workmodeTray.move(_left, top); top += _workmodeTray.height() + st::setLittleSkip;
+        _workmodeWindow.move(_left, top); top += _workmodeWindow.height() + st::setSectionSkip;
+        
+        _autoStart.move(_left, top); top += _autoStart.height() + st::setLittleSkip;
+        _startMinimized.move(_left, top); top += _startMinimized.height();
+    }
+    if (!cRetina()) {
+        top += st::setHeaderSkip;
+        _dpiAutoScale.move(_left, top); top += _dpiAutoScale.height() + st::setLittleSkip;
+        _dpiSlider.move(_left, top); top += _dpiSlider.height() + st::dpiFont4->height;
+    }
+    
 	// chat options
 	if (_self) {
 		top += st::setHeaderSkip;
@@ -625,14 +632,27 @@ void SettingsInner::showAll() {
 
 	// general
 	_autoUpdate.show();
-
-	_workmodeTray.show();
-	_workmodeWindow.show();
-
-	_autoStart.show();
 	setUpdatingState(_updatingState, true);
-	_startMinimized.show();
-	_dpiSlider.show();
+    if (cPlatform() == dbipWindows) {
+        _workmodeTray.show();
+        _workmodeWindow.show();
+
+        _autoStart.show();
+        _startMinimized.show();
+    } else {
+        _workmodeTray.hide();
+        _workmodeWindow.hide();
+        
+        _autoStart.hide();
+        _startMinimized.hide();
+    }
+    if (cRetina()) {
+        _dpiSlider.hide();
+        _dpiAutoScale.hide();
+    } else {
+        _dpiSlider.show();
+        _dpiAutoScale.show();
+    }
 
 	// chat options
 	if (_self) {
diff --git a/Telegram/SourceFiles/sysbuttons.cpp b/Telegram/SourceFiles/sysbuttons.cpp
index d482d54ff..0e3e5b0b1 100644
--- a/Telegram/SourceFiles/sysbuttons.cpp
+++ b/Telegram/SourceFiles/sysbuttons.cpp
@@ -45,8 +45,8 @@ void SysBtn::onStateChange(int oldState, ButtonStateChangeSource source) {
 void SysBtn::paintEvent(QPaintEvent *e) {
 	QPainter p(this);
 
-	int x = (width() - _st.img.width()) / 2, y = (height() - _st.img.height()) / 2;
-	p.fillRect(x, y, _st.img.width(), _st.img.height(), a_color.current());
+	int x = (width() - _st.img.pxWidth()) / 2, y = (height() - _st.img.pxHeight()) / 2;
+	p.fillRect(x, y, _st.img.pxWidth(), _st.img.pxHeight(), a_color.current());
 	p.drawPixmap(QPoint(x, y), App::sprite(), _st.img);
 }
 
diff --git a/Telegram/SourceFiles/telegram.qrc b/Telegram/SourceFiles/telegram.qrc
index cc02b7f80..c58227517 100644
--- a/Telegram/SourceFiles/telegram.qrc
+++ b/Telegram/SourceFiles/telegram.qrc
@@ -1,6 +1,7 @@
 <RCC>
     <qresource prefix="/gui">
         <file>art/segoe_ui.ttf</file>
+        <file>art/segoeuib.ttf</file>
         <file>art/segoe_ui_semibold.ttf</file>
         <file>art/segoe_wp_semibold.ttf</file>
         <file>art/newmsg.wav</file>
diff --git a/Telegram/SourceFiles/title.cpp b/Telegram/SourceFiles/title.cpp
index b2528b795..fde848d9c 100644
--- a/Telegram/SourceFiles/title.cpp
+++ b/Telegram/SourceFiles/title.cpp
@@ -76,6 +76,13 @@ TitleWidget::TitleWidget(Window *window)
 	connect(&_about, SIGNAL(clicked()), this, SLOT(onAbout()));
 	connect(wnd->windowHandle(), SIGNAL(windowStateChanged(Qt::WindowState)), this, SLOT(stateChanged(Qt::WindowState)));
 	connect(App::app(), SIGNAL(updateReady()), this, SLOT(showUpdateBtn()));
+        
+    if (cPlatform() == dbipMac) {
+        _minimize.hide();
+        _maximize.hide();
+        _restore.hide();
+        _close.hide();
+    }
 }
 
 void TitleWidget::paintEvent(QPaintEvent *e) {
@@ -118,17 +125,19 @@ TitleWidget::~TitleWidget() {
 }
 
 void TitleWidget::resizeEvent(QResizeEvent *e) {
-	QPoint p(width() - (lastMaximized ? 0 : st::sysBtnDelta), 0);
+	QPoint p(width() - ((cPlatform() == dbipWindows && lastMaximized) ? 0 : st::sysBtnDelta), 0);
 	
-	p.setX(p.x() - _close.width());
-	_close.move(p);
-
-	p.setX(p.x() - _maximize.width());
-	_restore.move(p); _maximize.move(p);
-
-	p.setX(p.x() - _minimize.width());
-	_minimize.move(p);
-
+    if (cPlatform() != dbipMac) {
+        p.setX(p.x() - _close.width());
+        _close.move(p);
+        
+        p.setX(p.x() - _maximize.width());
+        _restore.move(p); _maximize.move(p);
+        
+        p.setX(p.x() - _minimize.width());
+        _minimize.move(p);
+    }
+    
 	if (!_update.isHidden()) {
 		p.setX(p.x() - _update.width());
 		_update.move(p);
@@ -184,6 +193,8 @@ void TitleWidget::maximizedChanged(bool maximized) {
 	if (lastMaximized == maximized) return;
 
 	lastMaximized = maximized;
+
+    if (cPlatform() == dbipMac) return;
 	if (maximized) {
 		_maximize.clearState();
 	} else {
@@ -202,7 +213,7 @@ HitTestType TitleWidget::hitTest(const QPoint &p) {
 	int x(p.x()), y(p.y()), w(width()), h(height() - st::titleShadow);
 	if (hider && x >= App::main()->dlgsWidth()) return HitTestNone;
 
-	if (x >= st::titleIconPos.x() && y >= st::titleIconPos.y() && x < st::titleIconPos.x() + st::titleIconRect.width() && y < st::titleIconPos.y() + st::titleIconRect.height()) {
+	if (x >= st::titleIconPos.x() && y >= st::titleIconPos.y() && x < st::titleIconPos.x() + st::titleIconRect.pxWidth() && y < st::titleIconPos.y() + st::titleIconRect.pxHeight()) {
 		return HitTestIcon;
 	} else if (false
 		|| (_update.hitTest(p - _update.geometry().topLeft()) == HitTestSysButton) && _update.isVisible()
diff --git a/Telegram/SourceFiles/window.cpp b/Telegram/SourceFiles/window.cpp
index dab1fc75f..1daba3f63 100644
--- a/Telegram/SourceFiles/window.cpp
+++ b/Telegram/SourceFiles/window.cpp
@@ -43,20 +43,20 @@ void ConnectingWidget::set(const QString &text, const QString &reconnect) {
 	} else {
 		_reconnect.setText(reconnect);
 		_reconnect.show();
-		_reconnect.move(st::connectingPadding.left() + _textWidth, st::boxShadow.height() + st::connectingPadding.top());
+		_reconnect.move(st::connectingPadding.left() + _textWidth, st::boxShadow.pxHeight() + st::connectingPadding.top());
 		_reconnectWidth = _reconnect.width();
 	}
-	resize(st::connectingPadding.left() + _textWidth + _reconnectWidth + st::connectingPadding.right() + st::boxShadow.width(), st::boxShadow.height() + st::connectingPadding.top() + st::linkFont->height + st::connectingPadding.bottom());
+	resize(st::connectingPadding.left() + _textWidth + _reconnectWidth + st::connectingPadding.right() + st::boxShadow.pxWidth(), st::boxShadow.pxHeight() + st::connectingPadding.top() + st::linkFont->height + st::connectingPadding.bottom());
 	update();
 }
 void ConnectingWidget::paintEvent(QPaintEvent *e) {
 	QPainter p(this);
 
-	_shadow.paint(p, QRect(0, st::boxShadow.height(), width() - st::boxShadow.width(), height() - st::boxShadow.height()), QPoint(0, 0), BoxShadow::Top | BoxShadow::Right);
-	p.fillRect(0, st::boxShadow.height(), width() - st::boxShadow.width(), height() - st::boxShadow.height(), st::connectingBG->b);
+	_shadow.paint(p, QRect(0, st::boxShadow.pxHeight(), width() - st::boxShadow.pxWidth(), height() - st::boxShadow.pxHeight()), QPoint(0, 0), BoxShadow::Top | BoxShadow::Right);
+	p.fillRect(0, st::boxShadow.pxHeight(), width() - st::boxShadow.pxWidth(), height() - st::boxShadow.pxHeight(), st::connectingBG->b);
 	p.setFont(st::linkFont->f);
 	p.setPen(st::connectingColor->p);
-	p.drawText(st::connectingPadding.left(), st::boxShadow.height() + st::connectingPadding.top() + st::linkFont->ascent, _text);
+	p.drawText(st::connectingPadding.left(), st::boxShadow.pxHeight() + st::connectingPadding.top() + st::linkFont->ascent, _text);
 }
 
 void ConnectingWidget::onReconnect() {
@@ -438,7 +438,7 @@ bool Window::getVideoCoords(VideoData *video, int32 &x, int32 &y, int32 &w) cons
 }
 
 QRect Window::iconRect() const {
-	return QRect(st::titleIconPos + title->geometry().topLeft(), st::titleIconRect.size());
+	return QRect(st::titleIconPos + title->geometry().topLeft(), st::titleIconRect.pxSize());
 }
 
 bool Window::eventFilter(QObject *obj, QEvent *evt) {
diff --git a/Telegram/Telegram.plist b/Telegram/Telegram.plist
index 053296071..a290a92b6 100644
--- a/Telegram/Telegram.plist
+++ b/Telegram/Telegram.plist
@@ -11,7 +11,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.5.1</string>
+	<string>0.5.2</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>NOTE</key>
diff --git a/Telegram/Telegram.xcodeproj/project.pbxproj b/Telegram/Telegram.xcodeproj/project.pbxproj
index f75a0bff4..afed215ad 100644
--- a/Telegram/Telegram.xcodeproj/project.pbxproj
+++ b/Telegram/Telegram.xcodeproj/project.pbxproj
@@ -38,7 +38,7 @@
 		02F93BF511880983D3C57B84 /* dialogswidget.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = E466873F01ABA1E55E914489 /* dialogswidget.cpp */; settings = {ATTRIBUTES = (); }; };
 		03270F718426CFE84729079E /* flattextarea.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = 5C7FD422BBEDA858D7237AE9 /* flattextarea.cpp */; settings = {ATTRIBUTES = (); }; };
 		06EABCC49D2EEE4076322BE7 /* moc_mtp.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = 924D4939FD169BB4B8AEB1C9 /* moc_mtp.cpp */; settings = {ATTRIBUTES = (); }; };
-		07C3AF26194336250016CFF1 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 07C3AF24194335ED0016CFF1 /* Images.xcassets */; };
+		0749CE69194D723400345D61 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 07C3AF24194335ED0016CFF1 /* Images.xcassets */; };
 		0A49F3A5DC0680FB31519670 /* phoneinput.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = 7C8F9CA4FCE8AF8FCCCB961E /* phoneinput.cpp */; settings = {ATTRIBUTES = (); }; };
 		0CB7DE9A54CC9BF86FB7B5CA /* mtp.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = 6D50D70712776D7ED3B00E5C /* mtp.cpp */; settings = {ATTRIBUTES = (); }; };
 		0F0FC25286E16E5F78962FEE /* moc_newgroupbox.cpp in Compile Sources */ = {isa = PBXBuildFile; fileRef = 69FE16874104731CE2A66E0D /* moc_newgroupbox.cpp */; settings = {ATTRIBUTES = (); }; };
@@ -1141,7 +1141,6 @@
 				87DF60DE337FB58864343E39 /* Resources */,
 				AF39DD055C3EF8226FBE929D /* Frameworks */,
 				FE0A091FDBFB3E9C31B7A1BD /* Products */,
-				07C3AF40194CCC310016CFF1 /* Preprocess copy-Info.plist */,
 			);
 			name = Telegram;
 			sourceTree = "<Group>";
@@ -1208,7 +1207,7 @@
 			isa = PBXResourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				07C3AF26194336250016CFF1 /* Images.xcassets in Resources */,
+				0749CE69194D723400345D61 /* Images.xcassets in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1491,7 +1490,7 @@
 					"/usr/local/Qt-5.3.0/plugins/imageformats",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				OBJROOT = ./../Mac/DebugIntermediate/;
+				OBJROOT = "./../Mac/$(CONFIGURATION)Intermediate";
 				OTHER_CFLAGS = (
 					"-pipe",
 					"-g",
@@ -1542,7 +1541,7 @@
 				PRODUCT_NAME = Telegram;
 				QT_LIBRARY_SUFFIX = "";
 				SDKROOT = macosx;
-				SYMROOT = ./;
+				SYMROOT = ./../Mac;
 			};
 			name = Release;
 		};
@@ -1595,7 +1594,7 @@
 					"/usr/local/Qt-5.3.0/plugins/imageformats",
 				);
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
-				OBJROOT = ./../Mac/DebugIntermediate/;
+				OBJROOT = "./../Mac/$(CONFIGURATION)Intermediate";
 				OTHER_CFLAGS = (
 					"-pipe",
 					"-g",
@@ -1646,7 +1645,7 @@
 				PRODUCT_NAME = Telegram;
 				QT_LIBRARY_SUFFIX = _debug;
 				SDKROOT = macosx;
-				SYMROOT = ./;
+				SYMROOT = ./../Mac;
 			};
 			name = Debug;
 		};
@@ -1655,8 +1654,10 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				COPY_PHASE_STRIP = YES;
-				CURRENT_PROJECT_VERSION = 0.5.1;
+				CURRENT_PROJECT_VERSION = 0.5.2;
+				DYLIB_CURRENT_VERSION = 0.5.2;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = NO;
+				GCC_LINK_WITH_DYNAMIC_LIBRARIES = NO;
 				GCC_OPTIMIZATION_LEVEL = fast;
 				GCC_PREFIX_HEADER = ./SourceFiles/stdafx.h;
 				LLVM_LTO = YES;
@@ -1673,9 +1674,11 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 0.5.1;
+				CURRENT_PROJECT_VERSION = 0.5.2;
 				DEBUG_INFORMATION_FORMAT = dwarf;
+				DYLIB_CURRENT_VERSION = 0.5.2;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = YES;
+				GCC_LINK_WITH_DYNAMIC_LIBRARIES = NO;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREFIX_HEADER = ./SourceFiles/stdafx.h;
 				OBJROOT = ./../Mac/DebugIntermediate;