Update default tooltip colors.

ui/colors.palette

@@ -435,8 +435,8 @@ youtubePlayIconBg: #e83131c8; // youtube play icon background (when a link to a
 youtubePlayIconFg: windowFgActive; // youtube play icon arrow (when a link to a youtube video with a webpage preview is sent)
 videoPlayIconBg: #0000007f; // other video play icon background (like when a link to a vimeo video with a webpage preview is sent)
 videoPlayIconFg: #ffffff; // other video play icon arrow (like when a link to a vimeo video with a webpage preview is sent)
-toastBg: #000000b2; // toast notification background (like when you click on your t.me link when editing your username)
-toastFg: windowFgActive; // toast notification text (like when you click on your t.me link when editing your username)
+toastBg: #2c3033e5; // toast notification background (like when you click on your t.me link when editing your username)
+toastFg: #ffffff; // toast notification text (like when you click on your t.me link when editing your username)
 
 historyToDownBg: windowBg; // arrow button background (to scroll to the end of the viewed chat)
 historyToDownBgOver: windowBgOver; // arrow button background with mouse over
@@ -518,7 +518,7 @@ mediaviewControlBg: #0000003c; // controls background (like next photo / previou
 mediaviewControlFg: #ffffff; // controls icon (like next photo / previous photo)
 mediaviewCaptionBg: #11111180; // caption text background (when viewing photo with caption)
 mediaviewCaptionFg: mediaviewControlFg; // caption text
-mediaviewTextLinkFg: #91d9ff; // caption text link
+mediaviewTextLinkFg: #4db8ff; // caption text link
 mediaviewSaveMsgBg: toastBg; // save to file toast message background in Media Viewer
 mediaviewSaveMsgFg: toastFg; // save to file toast message text
 

ui/toast/toast_widget.cpp

@@ -138,7 +138,7 @@ void Widget::paintEvent(QPaintEvent *e) {
 	}
 	_roundRect.paint(p, rect());
 	if (_dark) {
-		_roundRect.paint(p, rect());
+		//_roundRect.paint(p, rect());
 	}
 
 	if (!_st->icon.empty()) {

ui/widgets/tooltip.cpp

@@ -9,6 +9,7 @@
 #include "ui/ui_utility.h"
 #include "ui/painter.h"
 #include "ui/platform/ui_platform_utility.h"
+#include "ui/widgets/labels.h"
 #include "base/invoke_queued.h"
 #include "base/platform/base_platform_info.h"
 #include "styles/style_widgets.h"
@@ -410,4 +411,41 @@ void ImportantTooltip::paintEvent(QPaintEvent *e) {
 	}
 }
 
+object_ptr<FlatLabel> MakeNiceTooltipLabel(
+		QWidget *parent,
+		rpl::producer<TextWithEntities> &&text,
+		int maxWidth,
+		const style::FlatLabel &st,
+		const style::PopupMenu &stMenu) {
+	Expects(st.minWidth > 0);
+	Expects(st.minWidth < maxWidth);
+
+	auto result = object_ptr<FlatLabel>(
+		parent,
+		rpl::duplicate(text),
+		st,
+		stMenu);
+	const auto raw = result.data();
+	std::move(text) | rpl::start_with_next([=, &st] {
+		raw->resizeToNaturalWidth(maxWidth);
+		if (raw->naturalWidth() <= maxWidth) {
+			return;
+		}
+		const auto desired = raw->heightNoMargins();
+		auto from = st.minWidth;
+		auto till = maxWidth;
+		while (till - from > 1) {
+			const auto middle = (from + till) / 2;
+			raw->resizeToWidth(middle);
+			if (raw->heightNoMargins() > desired) {
+				from = middle;
+			} else {
+				till = middle;
+			}
+		}
+		raw->resizeToWidth(till);
+	}, raw->lifetime());
+	return result;
+}
+
 } // namespace Ui

ui/widgets/tooltip.h

@@ -16,10 +16,19 @@
 namespace style {
 struct Tooltip;
 struct ImportantTooltip;
+struct FlatLabel;
+struct PopupMenu;
 } // namespace style
 
+namespace st {
+extern const style::FlatLabel &defaultFlatLabel;
+extern const style::PopupMenu &defaultPopupMenu;
+} // namespace st
+
 namespace Ui {
 
+class FlatLabel;
+
 class AbstractTooltipShower {
 public:
 	virtual QString tooltipText() const = 0;
@@ -113,4 +122,11 @@ class ImportantTooltip : public RpWidget {
 
 };
 
+[[nodiscard]] object_ptr<FlatLabel> MakeNiceTooltipLabel(
+	QWidget *parent,
+	rpl::producer<TextWithEntities> &&text,
+	int maxWidth,
+	const style::FlatLabel &st = st::defaultFlatLabel,
+	const style::PopupMenu &stMenu = st::defaultPopupMenu);
+
 } // namespace Ui