custom style for tooltips

lib/helpers/extensions/scheme_to_theme.dart

@@ -1,22 +1,33 @@
 import "package:flutter/material.dart";
 
 extension SchemeToTheme on ColorScheme {
-  ThemeData get theme => .from(colorScheme: this).copyWith(
-    cardTheme: .new(color: primaryContainer),
-    popupMenuTheme: .new(
-      shape: RoundedRectangleBorder(borderRadius: .circular(16)),
-      color: surfaceContainerHigh,
-    ),
-    appBarTheme: AppBarTheme(
-      titleSpacing: 0,
-      backgroundColor: surfaceContainerLow,
-    ),
-    textTheme: ThemeData(
+  ThemeData get theme {
+    final textTheme = ThemeData(
       fontFamilyFallback: ["sans", "emoji", "fallback-sans", "fallback-emoji"],
       brightness: brightness,
-    ).textTheme,
-    inputDecorationTheme: const InputDecorationTheme(
-      border: OutlineInputBorder(),
-    ),
-  );
+    ).textTheme;
+    return .from(colorScheme: this).copyWith(
+      cardTheme: .new(color: primaryContainer),
+      popupMenuTheme: .new(
+        shape: RoundedRectangleBorder(borderRadius: .circular(16)),
+        color: surfaceContainerHigh,
+      ),
+      appBarTheme: AppBarTheme(
+        titleSpacing: 0,
+        backgroundColor: surfaceContainerLow,
+      ),
+      tooltipTheme: .new(
+        textStyle: textTheme.labelLarge?.copyWith(fontSize: 16),
+        padding: .all(8),
+        decoration: BoxDecoration(
+          color: surfaceContainerHighest,
+          borderRadius: .circular(8),
+        ),
+      ),
+      textTheme: textTheme,
+      inputDecorationTheme: const InputDecorationTheme(
+        border: OutlineInputBorder(),
+      ),
+    );
+  }
 }