[Option][GUI] Tray icon settings

Telegram/Resources/langs/rewrites/en.json

@@ -64,6 +64,16 @@
 	"ktg_settings_recent_stickers_limit_none": "Recent stickers: hide all",
 	"ktg_settings_filters": "Folders",
 	"ktg_settings_messages": "Messages",
+	"ktg_settings_tray_icon": "Tray icon",
+	"ktg_settings_tray_icon_default": "Default",
+	"ktg_settings_tray_icon_blue": "Blue",
+	"ktg_settings_tray_icon_green": "Green",
+	"ktg_settings_tray_icon_orange": "Orange",
+	"ktg_settings_tray_icon_red": "Red",
+	"ktg_settings_tray_icon_legacy": "Legacy",
+	"ktg_settings_tray_icon_desc": "If you don't like any of these icons, you can place icon.png in your profile folder, but you'll need to restart app to see it.\n\nIcons below don't require restart.",
+	"ktg_settings_disable_tray_counter": "Disable tray icon counter",
+	"ktg_settings_use_telegram_panel_icon": "Ask the system for telegram icon",
 	"ktg_settings_chat_id": "Chat ID in profile",
 	"ktg_settings_chat_id_desc": "You can choose desired format here.\n\nTelegram API uses IDs as-is, but Bot API adds minus in the beginning for groups, and -100 for channels and supergroups to fit it in one field.\n\nIf you have profile panel opened, re-open it to see changes.",
 	"ktg_settings_chat_id_disable": "Hide",

Telegram/Resources/qrc/telegram/telegram.qrc

@@ -5,7 +5,17 @@
     <file alias="art/bg_initial.jpg">../../art/bg_initial.jpg</file>
     <file alias="art/business_logo.png">../../art/business_logo.png</file>
     <file alias="art/logo_256.png">../../art/logo_256.png</file>
+    <file alias="art/logo_256_blue.png">../../art/logo_256_blue.png</file>
+    <file alias="art/logo_256_green.png">../../art/logo_256_green.png</file>
+    <file alias="art/logo_256_orange.png">../../art/logo_256_orange.png</file>
+    <file alias="art/logo_256_red.png">../../art/logo_256_red.png</file>
+    <file alias="art/logo_256_old.png">../../art/logo_256_old.png</file>
     <file alias="art/logo_256_no_margin.png">../../art/logo_256_no_margin.png</file>
+    <file alias="art/logo_256_no_margin_blue.png">../../art/logo_256_no_margin_blue.png</file>
+    <file alias="art/logo_256_no_margin_green.png">../../art/logo_256_no_margin_green.png</file>
+    <file alias="art/logo_256_no_margin_orange.png">../../art/logo_256_no_margin_orange.png</file>
+    <file alias="art/logo_256_no_margin_red.png">../../art/logo_256_no_margin_red.png</file>
+    <file alias="art/logo_256_no_margin_old.png">../../art/logo_256_no_margin_old.png</file>
     <file alias="art/themeimage.jpg">../../art/themeimage.jpg</file>
     <file alias="art/dice_idle.tgs">../../art/dice_idle.tgs</file>
     <file alias="art/dart_idle.tgs">../../art/dart_idle.tgs</file>

Telegram/Resources/winrc/Kotatogram.rc

@@ -26,6 +26,11 @@ LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
 // Icon with lowest ID value placed first to ensure application icon
 // remains consistent on all systems.
 IDI_ICON1               ICON                    "..\\art\\icon256.ico"
+IDI_ICON2               ICON                    "..\\art\\icon256blue.ico"
+IDI_ICON3               ICON                    "..\\art\\icon256green.ico"
+IDI_ICON4               ICON                    "..\\art\\icon256orange.ico"
+IDI_ICON5               ICON                    "..\\art\\icon256red.ico"
+IDI_ICON6               ICON                    "..\\art\\icon256old.ico"
 
 /////////////////////////////////////////////////////////////////////////////
 //

Telegram/SourceFiles/kotato/kotato_settings.cpp

@@ -296,6 +296,16 @@ const std::map<QString, Definition, std::greater<QString>> DefinitionMap {
 	{ "always_show_top_userpic", {
 		.type = SettingType::BoolSetting,
 		.defaultValue = false, }},
+	{ "disable_tray_counter", {
+		.type = SettingType::BoolSetting,
+		.defaultValue = false, }},
+	{ "use_telegram_panel_icon", {
+		.type = SettingType::BoolSetting,
+		.defaultValue = false, }},
+	{ "custom_app_icon", {
+		.type = SettingType::IntSetting,
+		.defaultValue = 0,
+		.limitHandler = IntLimit(0, 5), }},
 };
 
 using OldOptionKey = QString;

Telegram/SourceFiles/kotato/kotato_settings_menu.cpp

@@ -48,6 +48,31 @@ namespace Settings {
 
 namespace {
 
+QString TrayIconLabel(int icon) {
+	switch (icon) {
+		case 0:
+			return ktr("ktg_settings_tray_icon_default");
+
+		case 1:
+			return ktr("ktg_settings_tray_icon_blue");
+
+		case 2:
+			return ktr("ktg_settings_tray_icon_green");
+
+		case 3:
+			return ktr("ktg_settings_tray_icon_orange");
+
+		case 4:
+			return ktr("ktg_settings_tray_icon_red");
+
+		case 5:
+			return ktr("ktg_settings_tray_icon_legacy");
+
+		default:
+			Unexpected("Icon in Settings::TrayIconLabel.");
+	}
+	return QString();
+}
 
 QString ChatIdLabel(int option) {
 	switch (option) {
@@ -267,6 +292,62 @@ void SetupKotatoSystem(
 	Ui::AddSkip(container);
 	Ui::AddSubsectionTitle(container, rktr("ktg_settings_system"));
 
+	container->add(object_ptr<Button>(
+		container,
+		rktr("ktg_settings_disable_tray_counter"),
+		st::settingsButtonNoIcon
+	))->toggleOn(
+		rpl::single(::Kotato::JsonSettings::GetBool("disable_tray_counter"))
+	)->toggledValue(
+	) | rpl::filter([](bool enabled) {
+		return (enabled != ::Kotato::JsonSettings::GetBool("disable_tray_counter"));
+	}) | rpl::start_with_next([controller](bool enabled) {
+		::Kotato::JsonSettings::Set("disable_tray_counter", enabled);
+		controller->session().data().notifyUnreadBadgeChanged();
+		::Kotato::JsonSettings::Write();
+	}, container->lifetime());
+
+	if (Platform::IsLinux()) {
+		container->add(object_ptr<Button>(
+			container,
+			rktr("ktg_settings_use_telegram_panel_icon"),
+			st::settingsButtonNoIcon
+		))->toggleOn(
+			rpl::single(::Kotato::JsonSettings::GetBool("use_telegram_panel_icon"))
+		)->toggledValue(
+		) | rpl::filter([](bool enabled) {
+			return (enabled != ::Kotato::JsonSettings::GetBool("use_telegram_panel_icon"));
+		}) | rpl::start_with_next([controller](bool enabled) {
+			::Kotato::JsonSettings::Set("use_telegram_panel_icon", enabled);
+			controller->session().data().notifyUnreadBadgeChanged();
+			::Kotato::JsonSettings::Write();
+		}, container->lifetime());
+	}
+
+	auto trayIconText = rpl::single(rpl::empty) | rpl::then(
+		controller->session().data().unreadBadgeChanges()
+	) | rpl::map([] {
+		return TrayIconLabel(::Kotato::JsonSettings::GetInt("custom_app_icon"));
+	});
+
+	AddButtonWithLabel(
+		container,
+		rktr("ktg_settings_tray_icon"),
+		trayIconText,
+		st::settingsButtonNoIcon
+	)->addClickHandler([=] {
+		Ui::show(Box<::Kotato::RadioBox>(
+			ktr("ktg_settings_tray_icon"),
+			ktr("ktg_settings_tray_icon_desc"),
+			::Kotato::JsonSettings::GetInt("custom_app_icon"),
+			6,
+			TrayIconLabel,
+			[=] (int value) {
+				::Kotato::JsonSettings::Set("custom_app_icon", value);
+				controller->session().data().notifyUnreadBadgeChanged();
+				::Kotato::JsonSettings::Write();
+			}, false));
+	});
 
 	Ui::AddSkip(container);
 }

Telegram/SourceFiles/platform/linux/tray_linux.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "platform/linux/tray_linux.h"
 
+#include "kotato/kotato_settings.h"
 #include "base/invoke_queued.h"
 #include "base/qt_signal_producer.h"
 #include "core/application.h"
@@ -25,11 +26,18 @@ namespace Platform {
 namespace {
 
 [[nodiscard]] QString PanelIconName(int counter, bool muted) {
+	const auto useTelegramPanelIcon = ::Kotato::JsonSettings::GetBool("use_telegram_panel_icon");
 	return (counter > 0)
 		? (muted
-			? u"kotatogram-mute-panel"_q
-			: u"kotatogram-attention-panel"_q)
-		: u"kotatogram-panel"_q;
+			? (useTelegramPanelIcon
+				? u"telegram-mute-panel"_q
+				: u"kotatogram-mute-panel"_q)
+			: (useTelegramPanelIcon
+				? u"telegram-attention-panel"_q
+				: u"kotatogram-attention-panel"_q))
+		: (useTelegramPanelIcon
+			? u"telegram-panel"_q
+			: u"kotatogram-panel"_q);
 }
 
 } // namespace
@@ -76,6 +84,9 @@ private:
 	QIcon _systemIcon;
 	QString _themeName;
 	bool _monochrome;
+	int _customId = 0;
+	bool _counterDisabled = false;
+	bool _telegramPanelIcon = false;
 
 };
 
@@ -93,7 +104,8 @@ QIcon IconGraphic::systemIcon(
 	if (iconThemeName == _themeName
 		&& monochrome == _monochrome
 		&& (counter > 0) == (_count > 0)
-		&& muted == _muted) {
+		&& muted == _muted
+		&& ::Kotato::JsonSettings::GetBool("use_telegram_panel_icon") == _telegramPanelIcon) {
 		return _systemIcon;
 	}
 
@@ -132,7 +144,10 @@ bool IconGraphic::isRefreshNeeded(
 		|| systemIcon.name() != _systemIcon.name()
 		|| (systemIcon.name() != PanelIconName(counter, muted)
 			? muted != _muted || counterSlice(counter) != _count
-			: false);
+			: false)
+		|| ::Kotato::JsonSettings::GetInt("custom_app_icon") != _customId
+		|| ::Kotato::JsonSettings::GetBool("disable_tray_counter") != _counterDisabled
+		|| ::Kotato::JsonSettings::GetBool("use_telegram_panel_icon") != _telegramPanelIcon;
 }
 
 void IconGraphic::updateIconRegenerationNeeded(
@@ -148,6 +163,9 @@ void IconGraphic::updateIconRegenerationNeeded(
 	_monochrome = monochrome;
 	_count = counterSlice(counter);
 	_muted = muted;
+	_customId = ::Kotato::JsonSettings::GetInt("custom_app_icon");
+	_counterDisabled = ::Kotato::JsonSettings::GetBool("disable_tray_counter");
+	_telegramPanelIcon = ::Kotato::JsonSettings::GetBool("use_telegram_panel_icon");
 }
 
 QSize IconGraphic::dprSize(const QImage &image) const {
@@ -177,6 +195,8 @@ QIcon IconGraphic::trayIcon(
 	}
 
 	QIcon result;
+	const auto customAppIcon = ::Kotato::JsonSettings::GetInt("custom_app_icon");
+	const auto disableTrayCounter = ::Kotato::JsonSettings::GetInt("disable_tray_counter");
 
 	for (const auto iconSize : _iconSizes) {
 		auto &currentImageBack = _imageBack[iconSize];
@@ -184,8 +204,14 @@ QIcon IconGraphic::trayIcon(
 
 		if (currentImageBack.isNull()
 			|| iconThemeName != _themeName
-			|| systemIcon.name() != _systemIcon.name()) {
-			if (!systemIcon.isNull()) {
+			|| systemIcon.name() != _systemIcon.name()
+			|| customAppIcon != _customId
+			|| disableTrayCounter != _counterDisabled) {
+			if (QFileInfo::exists(cWorkingDir() + "tdata/icon.png")) {
+				currentImageBack = QImage(cWorkingDir() + "tdata/icon.png");
+			} else if (customAppIcon != 0) {
+				currentImageBack = Window::Logo(customAppIcon);
+			} else if (!systemIcon.isNull()) {
 				// We can't use QIcon::actualSize here
 				// since it works incorrectly with svg icon themes
 				currentImageBack = systemIcon
@@ -222,7 +248,7 @@ QIcon IconGraphic::trayIcon(
 			}
 		}
 
-		result.addPixmap(Ui::PixmapFromImage(counter > 0
+		result.addPixmap(Ui::PixmapFromImage((!disableTrayCounter && counter > 0)
 			? Window::WithSmallCounter(std::move(currentImageBack), {
 				.size = iconSize,
 				.count = counter,

Telegram/SourceFiles/platform/mac/main_window_mac.mm

@@ -139,6 +139,7 @@ private:
 #else // Qt >= 6.5.0
 		Core::App().settings().setSystemDarkMode(Platform::IsDarkMode());
 #endif // Qt < 6.5.0
+		Core::App().domain().notifyUnreadBadgeChanged();
 	});
 }
 #endif // Qt < 6.6.0

Telegram/SourceFiles/platform/mac/tray_mac.mm

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "platform/mac/tray_mac.h"
 
+#include "kotato/kotato_settings.h"
 #include "base/platform/mac/base_utilities_mac.h"
 #include "core/application.h"
 #include "core/sandbox.h"
@@ -91,13 +92,35 @@ namespace {
 	return false;
 }
 
-[[nodiscard]] QImage TrayIconBack(bool darkMode) {
+[[nodiscard]] QImage TrayIconBack(bool darkMode, bool selected = false) {
 	static const auto WithColor = [](QColor color) {
 		return st::macTrayIcon.instance(color, 100);
 	};
-	static const auto DarkModeResult = WithColor({ 255, 255, 255 });
-	static const auto LightModeResult = WithColor({ 0, 0, 0, 180 });
-	auto result = darkMode ? DarkModeResult : LightModeResult;
+
+	QImage iconImageLight(cWorkingDir() + "tdata/icon.png");
+	QImage iconImageDark(cWorkingDir() + "tdata/icon_dark.png");
+	QImage iconImageLightSelected(cWorkingDir() + "tdata/icon_selected.png");
+	QImage iconImageDarkSelected(cWorkingDir() + "tdata/icon_dark_selected.png");
+
+
+	static const auto LightModeResult = iconImageLight.isNull()
+		? WithColor({ 0, 0, 0, 180 })
+		: iconImageLight;
+	static const auto DarkModeResult = iconImageDark.isNull()
+		? (iconImageLight.isNull()
+			? WithColor({ 255, 255, 255 })
+			: iconImageLight)
+		: iconImageDark;
+	static const auto LightModeSelectedResult = iconImageLightSelected.isNull()
+		? DarkModeResult
+		: iconImageLightSelected;
+	static const auto DarkModeSelectedResult = iconImageDarkSelected.isNull()
+		? LightModeSelectedResult
+		: iconImageDarkSelected;
+
+	auto result = darkMode
+		? (selected ? DarkModeSelectedResult : DarkModeResult)
+		: (selected ? LightModeSelectedResult : LightModeResult);
 	result.detach();
 	return result;
 }
@@ -190,20 +213,21 @@ void UpdateIcon(const NSStatusItem *status) {
 	const auto selectedSize = QSize(side, side);
 
 	auto result = TrayIconBack(darkMode);
-	auto resultActive = result;
-	resultActive.detach();
+	auto resultActive = TrayIconBack(darkMode, true);
 
-	const auto counter = Core::App().unreadBadge();
-	const auto muted = Core::App().unreadBadgeMuted();
+	if (!::Kotato::JsonSettings::GetBool("disable_tray_counter")) {
+		const auto counter = Core::App().unreadBadge();
+		const auto muted = Core::App().unreadBadgeMuted();
 
-	const auto &bg = (muted ? st::trayCounterBgMute : st::trayCounterBg);
-	const auto &fg = st::trayCounterFg;
-	const auto &fgInvert = st::trayCounterFgMacInvert;
-	const auto &bgInvert = st::trayCounterBgMacInvert;
+		const auto &bg = (muted ? st::trayCounterBgMute : st::trayCounterBg);
+		const auto &fg = st::trayCounterFg;
+		const auto &fgInvert = st::trayCounterFgMacInvert;
+		const auto &bgInvert = st::trayCounterBgMacInvert;
 
-	const auto &resultFg = !darkMode ? fg : muted ? fgInvert : fg;
-	PlaceCounter(result, side, counter, bg, resultFg);
-	PlaceCounter(resultActive, side, counter, bgInvert, fgInvert);
+		const auto &resultFg = !darkMode ? fg : muted ? fgInvert : fg;
+		PlaceCounter(result, side, counter, bg, resultFg);
+		PlaceCounter(resultActive, side, counter, bgInvert, fgInvert);
+	}
 
 	// Scale large pixmaps to fit the available menu bar area.
 	if (result.height() > maxImageHeight) {

Telegram/SourceFiles/platform/win/tray_win.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "platform/win/tray_win.h"
 
 #include "kotato/kotato_lang.h"
+#include "kotato/kotato_settings.h"
 #include "base/invoke_queued.h"
 #include "base/qt_signal_producer.h"
 #include "core/application.h"
@@ -127,6 +128,7 @@ bool DarkTasbarValueValid/* = false*/;
 	static auto ScaledLogoNoMargin = base::flat_map<int, QImage>();
 	static auto ScaledLogoDark = base::flat_map<int, QImage>();
 	static auto ScaledLogoLight = base::flat_map<int, QImage>();
+	static auto CustomIcon = QImage(cWorkingDir() + "tdata/icon.png");
 
 	const auto darkMode = IsDarkTaskbar();
 	auto &scaled = (monochrome && darkMode)
@@ -138,17 +140,22 @@ bool DarkTasbarValueValid/* = false*/;
 		: ScaledLogo;
 
 	auto result = [&] {
+		const auto idx = CustomIcon.isNull()
+			? ::Kotato::JsonSettings::GetInt("custom_app_icon")
+			: 0;
 		if (const auto it = scaled.find(args.size); it != scaled.end()) {
 			return it->second;
 		} else if (monochrome && darkMode) {
 			return MonochromeIconFor(args.size, *darkMode);
 		}
 		return scaled.emplace(
-			args.size,
-			(smallIcon
-				? Window::LogoNoMargin()
-				: Window::Logo()
-			).scaledToWidth(args.size, Qt::SmoothTransformation)
+			args.size + idx,
+			!CustomIcon.isNull()
+				? CustomIcon.scaledToWidth(args.size, Qt::SmoothTransformation)
+				: (smallIcon
+					? Window::LogoNoMargin(::Kotato::JsonSettings::GetInt("custom_app_icon"))
+					: Window::Logo(::Kotato::JsonSettings::GetInt("custom_app_icon"))
+				).scaledToWidth(args.size, Qt::SmoothTransformation)
 		).first->second;
 	}();
 	if ((!monochrome || !darkMode) && supportMode) {
@@ -159,6 +166,8 @@ bool DarkTasbarValueValid/* = false*/;
 	} else if (smallIcon) {
 		if (monochrome && darkMode) {
 			return MonochromeWithDot(std::move(result), args.bg);
+		} else if (::Kotato::JsonSettings::GetBool("disable_tray_counter")) {
+			return result;
 		}
 		return Window::WithSmallCounter(std::move(result), std::move(args));
 	}

Telegram/SourceFiles/settings/settings.style

@@ -79,6 +79,7 @@ settingsIconInterfaceScale: icon {{ "settings/interface_scale", settingsIconFg }
 settingsIconStickers: icon {{ "settings/stickers", settingsIconFg }};
 settingsIconEmoji: icon {{ "settings/emoji", settingsIconFg }};
 settingsIconKotato: icon {{ "settings/kotato", settingsIconFg }};
+settingsIconKotatoOld: icon {{ "settings/kotato_old", settingsIconFg }};
 
 settingsPremiumIconWallpapers: icon {{ "settings/photo", settingsIconFg }};
 settingsPremiumIconStories: icon {{ "settings/stories", settingsIconFg }};

Telegram/SourceFiles/settings/settings_main.cpp

@@ -394,7 +394,9 @@ void SetupSections(
 	addSection(
 		rktr("ktg_settings_kotato"),
 		Kotato::Id(),
-		{ &st::settingsIconKotato });
+		{(::Kotato::JsonSettings::GetInt("custom_app_icon") == 5
+			? &st::settingsIconKotatoOld
+			: &st::settingsIconKotato) });
 
 	SetupPowerSavingButton(&controller->window(), container);
 	SetupLanguageButton(&controller->window(), container);

Telegram/SourceFiles/settings/settings_notifications.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "settings/settings_notifications.h"
 
+#include "kotato/kotato_settings.h"
 #include "settings/settings_notifications_type.h"
 #include "ui/boxes/confirm_box.h"
 #include "ui/controls/chat_service_checkbox.h"
@@ -430,7 +431,7 @@ void NotificationsCount::prepareNotificationSampleSmall() {
 void NotificationsCount::prepareNotificationSampleUserpic() {
 	if (_notificationSampleUserpic.isNull()) {
 		_notificationSampleUserpic = Ui::PixmapFromImage(
-			Window::LogoNoMargin().scaled(
+			Window::LogoNoMargin(::Kotato::JsonSettings::GetInt("custom_app_icon")).scaled(
 				st::notifyPhotoSize * style::DevicePixelRatio(),
 				st::notifyPhotoSize * style::DevicePixelRatio(),
 				Qt::IgnoreAspectRatio,

Telegram/SourceFiles/window/main_window.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "window/main_window.h"
 
+#include "kotato/kotato_settings.h"
 #include "api/api_updates.h"
 #include "storage/localstorage.h"
 #include "platform/platform_specific.h"
@@ -77,13 +78,41 @@ base::options::toggle OptionNewWindowsSizeAsFirst({
 
 const char kOptionNewWindowsSizeAsFirst[] = "new-windows-size-as-first";
 
-const QImage &Logo() {
+const QImage &Logo(int variant) {
 	static const auto result = QImage(u":/gui/art/logo_256.png"_q);
+	static const auto result_blue = QImage(u":/gui/art/logo_256_blue.png"_q);
+	static const auto result_green = QImage(u":/gui/art/logo_256_green.png"_q);
+	static const auto result_orange = QImage(u":/gui/art/logo_256_orange.png"_q);
+	static const auto result_red = QImage(u":/gui/art/logo_256_red.png"_q);
+	static const auto result_old = QImage(u":/gui/art/logo_256_old.png"_q);
+
+	switch (variant) {
+		case 1: return result_blue;
+		case 2: return result_green;
+		case 3: return result_orange;
+		case 4: return result_red;
+		case 5: return result_old;
+	}
+
 	return result;
 }
 
-const QImage &LogoNoMargin() {
+const QImage &LogoNoMargin(int variant) {
 	static const auto result = QImage(u":/gui/art/logo_256_no_margin.png"_q);
+	static const auto result_blue = QImage(u":/gui/art/logo_256_no_margin_blue.png"_q);
+	static const auto result_green = QImage(u":/gui/art/logo_256_no_margin_green.png"_q);
+	static const auto result_orange = QImage(u":/gui/art/logo_256_no_margin_orange.png"_q);
+	static const auto result_red = QImage(u":/gui/art/logo_256_no_margin_red.png"_q);
+	static const auto result_old = QImage(u":/gui/art/logo_256_no_margin_old.png"_q);
+
+	switch (variant) {
+		case 1: return result_blue;
+		case 2: return result_green;
+		case 3: return result_orange;
+		case 4: return result_red;
+		case 5: return result_old;
+	}
+
 	return result;
 }
 
@@ -143,10 +172,15 @@ QIcon CreateOfficialIcon(Main::Session *session) {
 	if (!support) {
 		return QIcon();
 	}
+	const auto customIcon = QImage(cWorkingDir() + "tdata/icon.png");
 	auto overriden = OverridenIcon();
-	auto image = overriden.isNull()
-		? Platform::DefaultApplicationIcon()
-		: overriden;
+
+	auto image = customIcon.isNull()
+		? overriden.isNull()
+			? Logo(::Kotato::JsonSettings::GetInt("custom_app_icon"))
+			: overriden
+		: customIcon;
+
 	ConvertIconToBlack(image);
 	return QIcon(Ui::PixmapFromImage(std::move(image)));
 }
@@ -159,7 +193,9 @@ QIcon CreateIcon(Main::Session *session, bool returnNullIfDefault) {
 
 	auto result = QIcon(Ui::PixmapFromImage(base::duplicate(Logo())));
 
-	if constexpr (!Platform::IsLinux()) {
+	if ((session && session->supportMode())
+		|| (::Kotato::JsonSettings::GetInt("custom_app_icon") != 0)
+		|| QFileInfo::exists(cWorkingDir() + "tdata/icon.png")) {
 		return result;
 	}
 

Telegram/SourceFiles/window/main_window.h

@@ -34,8 +34,8 @@ class SessionController;
 class TitleWidget;
 struct TermsLock;
 
-[[nodiscard]] const QImage &Logo();
-[[nodiscard]] const QImage &LogoNoMargin();
+[[nodiscard]] const QImage &Logo(int variant = 0);
+[[nodiscard]] const QImage &LogoNoMargin(int variant = 0);
 void OverrideApplicationIcon(QImage image);
 [[nodiscard]] QIcon CreateIcon(
 	Main::Session *session = nullptr,
@@ -217,6 +217,8 @@ private:
 	object_ptr<Ui::RpWidget> _body;
 	object_ptr<TWidget> _rightColumn = { nullptr };
 
+	int _customIconId = 0;
+
 	bool _isActive = false;
 
 	rpl::event_stream<> _leaveEvents;

Telegram/SourceFiles/window/notifications_manager_default.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "window/notifications_manager_default.h"
 
+#include "kotato/kotato_settings.h"
 #include "platform/platform_notifications_manager.h"
 #include "platform/platform_specific.h"
 #include "core/application.h"
@@ -103,7 +104,7 @@ QPixmap Manager::hiddenUserpicPlaceholder() const {
 	if (_hiddenUserpicPlaceholder.isNull()) {
 		const auto ratio = style::DevicePixelRatio();
 		_hiddenUserpicPlaceholder = Ui::PixmapFromImage(
-			LogoNoMargin().scaled(
+			LogoNoMargin(::Kotato::JsonSettings::GetInt("custom_app_icon")).scaled(
 				st::notifyPhotoSize * ratio,
 				st::notifyPhotoSize * ratio,
 				Qt::IgnoreAspectRatio,

Telegram/SourceFiles/window/notifications_utilities.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "window/notifications_utilities.h"
 
+#include "kotato/kotato_settings.h"
 #include "window/main_window.h"
 #include "base/platform/base_platform_file_utilities.h"
 #include "base/random.h"
@@ -72,7 +73,7 @@ QString CachedUserpics::get(
 		if (key.first || key.second) {
 			GenerateUserpic(peer, view).save(v.path, "PNG");
 		} else {
-			LogoNoMargin().save(v.path, "PNG");
+			LogoNoMargin(::Kotato::JsonSettings::GetInt("custom_app_icon")).save(v.path, "PNG");
 		}
 		i = _images.insert(key, v);
 		_someSavedFlag = true;