custom style for tooltips

lib/helpers/extensions/scheme_to_theme.dart

@@ -1,7 +1,12 @@
 import "package:flutter/material.dart";
 
 extension SchemeToTheme on ColorScheme {
-  ThemeData get theme => .from(colorScheme: this).copyWith(
+  ThemeData get theme {
+    final textTheme = ThemeData(
+      fontFamilyFallback: ["sans", "emoji", "fallback-sans", "fallback-emoji"],
+      brightness: brightness,
+    ).textTheme;
+    return .from(colorScheme: this).copyWith(
       cardTheme: .new(color: primaryContainer),
       popupMenuTheme: .new(
         shape: RoundedRectangleBorder(borderRadius: .circular(16)),
@@ -11,12 +16,18 @@ extension SchemeToTheme on ColorScheme {
         titleSpacing: 0,
         backgroundColor: surfaceContainerLow,
       ),
-    textTheme: ThemeData(
+      tooltipTheme: .new(
-      fontFamilyFallback: ["sans", "emoji", "fallback-sans", "fallback-emoji"],
+        textStyle: textTheme.labelLarge?.copyWith(fontSize: 16),
-      brightness: brightness,
+        padding: .all(8),
-    ).textTheme,
+        decoration: BoxDecoration(
+          color: surfaceContainerHighest,
+          borderRadius: .circular(8),
+        ),
+      ),
+      textTheme: textTheme,
       inputDecorationTheme: const InputDecorationTheme(
         border: OutlineInputBorder(),
       ),
     );
+  }
 }