Name color changing for me / channels.

Telegram/SourceFiles/settings/settings_premium.cpp

@@ -41,6 +41,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/text/format_values.h"
 #include "ui/text/text_utilities.h"
 #include "ui/text/text_utilities.h"
+#include "ui/toast/toast.h"
 #include "ui/widgets/checkbox.h" // Ui::RadiobuttonGroup.
 #include "ui/widgets/gradient_round_button.h"
 #include "ui/widgets/labels.h"
@@ -1466,6 +1467,36 @@ QString LookupPremiumRef(PremiumPreview section) {
 	return QString();
 }
 
+void ShowPremiumPromoToast(
+		std::shared_ptr<ChatHelpers::Show> show,
+		TextWithEntities textWithLink,
+		const QString &ref) {
+	using WeakToast = base::weak_ptr<Ui::Toast::Instance>;
+	const auto toast = std::make_shared<WeakToast>();
+	(*toast) = show->showToast({
+		.text = std::move(textWithLink),
+		.st = &st::defaultMultilineToast,
+		.duration = Ui::Toast::kDefaultDuration * 2,
+		.multiline = true,
+		.filter = crl::guard(&show->session(), [=](
+				const ClickHandlerPtr &,
+				Qt::MouseButton button) {
+			if (button == Qt::LeftButton) {
+				if (const auto strong = toast->get()) {
+					strong->hideAnimated();
+					(*toast) = nullptr;
+					if (const auto controller = show->resolveWindow(
+							ChatHelpers::WindowUsage::PremiumPromo)) {
+						Settings::ShowPremium(controller, ref);
+					}
+					return true;
+				}
+			}
+			return false;
+		}),
+	});
+}
+
 not_null<Ui::GradientButton*> CreateSubscribeButton(
 		SubscribeButtonArgs &&args) {
 	Expects(args.show || args.controller);