diff --git a/Telegram/Resources/icons/mac_window_shadow_top_left.png b/Telegram/Resources/icons/mac_window_shadow_top_left.png
index bcf9c04516..b4688aad69 100644
Binary files a/Telegram/Resources/icons/mac_window_shadow_top_left.png and b/Telegram/Resources/icons/mac_window_shadow_top_left.png differ
diff --git a/Telegram/Resources/icons/mac_window_shadow_top_left@2x.png b/Telegram/Resources/icons/mac_window_shadow_top_left@2x.png
index 71bb8ddfa3..69627c1eef 100644
Binary files a/Telegram/Resources/icons/mac_window_shadow_top_left@2x.png and b/Telegram/Resources/icons/mac_window_shadow_top_left@2x.png differ
diff --git a/Telegram/Resources/icons/mac_window_shadow_top_left@3x.png b/Telegram/Resources/icons/mac_window_shadow_top_left@3x.png
index 6561ede861..4c6671312c 100644
Binary files a/Telegram/Resources/icons/mac_window_shadow_top_left@3x.png and b/Telegram/Resources/icons/mac_window_shadow_top_left@3x.png differ
diff --git a/Telegram/SourceFiles/platform/mac/window_title_mac.mm b/Telegram/SourceFiles/platform/mac/window_title_mac.mm
index 8843d56a7d..c8002c05ce 100644
--- a/Telegram/SourceFiles/platform/mac/window_title_mac.mm
+++ b/Telegram/SourceFiles/platform/mac/window_title_mac.mm
@@ -52,21 +52,27 @@ void PreviewWindowTitle(Painter &p, const style::palette &palette, QRect body, i
 	p.fillRect(titleRect, st::titleBgActive[palette]);
 	p.fillRect(titleRect.x(), titleRect.y() + titleRect.height() - st::lineWidth, titleRect.width(), st::lineWidth, st::titleShadow[palette]);
 
-	auto useSystemFont = false;
 	QFont font;
-	QStringList families = { qsl(".SF NS Text"), qsl("Helvetica Neue") };
+	const auto families = QStringList{
+		u".AppleSystemUIFont"_q,
+		u".SF NS Text"_q,
+		u"Helvetica Neue"_q,
+	};
 	for (auto family : families) {
 		font.setFamily(family);
 		if (QFontInfo(font).family() == font.family()) {
-			useSystemFont = true;
 			break;
 		}
 	}
 
-	if (useSystemFont) {
-		font.setPixelSize((titleHeight * 15) / 24);
+	if (QFontInfo(font).family() != font.family()) {
+		font = st::semiboldFont;
+		font.setPixelSize(13);
+	} else if (font.family() == u".AppleSystemUIFont"_q) {
+		font.setBold(true);
+		font.setPixelSize(13);
 	} else {
-		font = st::normalFont;
+		font.setPixelSize((titleHeight * 15) / 24);
 	}
 
 	p.setPen(st::titleFgActive[palette]);
diff --git a/Telegram/SourceFiles/window/window.style b/Telegram/SourceFiles/window/window.style
index a6278553db..8a61c1aae2 100644
--- a/Telegram/SourceFiles/window/window.style
+++ b/Telegram/SourceFiles/window/window.style
@@ -351,6 +351,6 @@ macAlwaysThisAppTop: 4;
 macAppHintTop: 8;
 macCautionIconSize: 16;
 
-macWindowRoundRadius: 5;
+macWindowRoundRadius: 10;
 macWindowShadowTopLeft: icon {{ "mac_window_shadow_top_left", windowShadowFg }};
 macTrayIcon: icon {{ "mac_tray_icon", windowFg }};
diff --git a/Telegram/lib_ui b/Telegram/lib_ui
index 220d683528..79d2052a83 160000
--- a/Telegram/lib_ui
+++ b/Telegram/lib_ui
@@ -1 +1 @@
-Subproject commit 220d6835283c51c6e529ad5ef2f100703098e270
+Subproject commit 79d2052a8323b374b9c60ef3f4baaad9084aff3b