Added reset button for profile to edit peer color box.

Telegram/Resources/langs/lang.strings

@@ -998,6 +998,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 "lng_settings_color_apply" = "Apply Style";
 "lng_settings_color_profile_emoji" = "Add icons to Profile";
 "lng_settings_color_profile_emoji_channel" = "Profile Logo";
+"lng_settings_color_reset" = "Reset Profile Color";
 
 "lng_suggest_hide_new_title" = "Hide new chats?";
 "lng_suggest_hide_new_about" = "You are receiving lots of new chats from users who are not in your Contact List.\n\nDo you want to have such chats **automatically muted** and **archived**?";

Telegram/SourceFiles/boxes/peers/edit_peer_color_box.cpp

@@ -1802,6 +1802,29 @@ void EditPeerProfileColorSection(
 		},
 		true));
 
+	const auto resetWrap = container->add(
+		object_ptr<Ui::SlideWrap<Ui::VerticalLayout>>(
+			container,
+			object_ptr<Ui::VerticalLayout>(container)));
+	const auto resetInner = resetWrap->entity();
+
+	Ui::AddSkip(resetInner, st::settingsColorSampleSkip);
+	const auto resetButton = resetInner->add(
+		object_ptr<Ui::SettingsButton>(
+			resetInner,
+			tr::lng_settings_color_reset(),
+			st::settingsButtonLightNoIcon));
+	resetButton->setClickedCallback([=] {
+		state->index = kUnsetColorIndex;
+		state->patternEmojiId = 0;
+		preview->setColorProfileIndex(std::nullopt);
+		preview->setPatternEmojiId(0);
+	});
+
+	resetWrap->toggleOn(state->index.value(
+	) | rpl::map([](uint8 index) { return index != kUnsetColorIndex; }));
+	resetWrap->finishAnimating();
+
 	state->index.value(
 	) | rpl::start_with_next([=](uint8 index) {
 		if (state->selector) {