Implement `renderItemTextStyle`

lib/src/models/config/toolbar/buttons/dropdown_header_style.dart

@@ -42,6 +42,7 @@ class QuillToolbarSelectHeaderStyleDropdownButtonOptions
     this.itemHeight,
     this.itemPadding,
     this.defaultItemColor,
+    this.renderItemTextStyle = false,
   });
 
   final double? iconSize;
@@ -59,6 +60,7 @@ class QuillToolbarSelectHeaderStyleDropdownButtonOptions
   final double? itemHeight;
   final EdgeInsets? itemPadding;
   final Color? defaultItemColor;
+  final bool renderItemTextStyle;
 
   QuillToolbarSelectHeaderStyleDropdownButtonOptions copyWith({
     Color? fillColor,
@@ -79,12 +81,12 @@ class QuillToolbarSelectHeaderStyleDropdownButtonOptions
     Color? defaultItemColor,
     double? iconSize,
     double? iconButtonFactor,
-    // Add properties to override inherited properties
     QuillController? controller,
     IconData? iconData,
     VoidCallback? afterButtonPressed,
     String? tooltip,
     QuillIconTheme? iconTheme,
+    bool? renderItemTextStyle,
   }) {
     return QuillToolbarSelectHeaderStyleDropdownButtonOptions(
       attributes: attributes ?? this.attributes,
@@ -107,6 +109,7 @@ class QuillToolbarSelectHeaderStyleDropdownButtonOptions
       fillColor: fillColor ?? this.fillColor,
       hoverElevation: hoverElevation ?? this.hoverElevation,
       highlightElevation: highlightElevation ?? this.highlightElevation,
+      renderItemTextStyle: renderItemTextStyle ?? this.renderItemTextStyle,
     );
   }
 }

lib/src/widgets/toolbar/buttons/dropdown_header_style.dart

@@ -37,6 +37,8 @@ class _QuillToolbarSelectHeaderStyleDropdownButtonState
     Attribute.h6: context.loc.heading6,
   };
 
+  late final Map<Attribute, TextStyle> _headerTextStyles;
+
   QuillToolbarSelectHeaderStyleDropdownButtonOptions get options {
     return widget.options;
   }
@@ -102,6 +104,15 @@ class _QuillToolbarSelectHeaderStyleDropdownButtonState
     super.initState();
     controller.addListener(_didChangeEditingValue);
     _selectedAttribute = _getHeaderValue();
+    final defaultStyles = QuillStyles.getStyles(context, false);
+    _headerTextStyles = {
+      Attribute.h1: defaultStyles!.h1!.style,
+      Attribute.h2: defaultStyles.h2!.style,
+      Attribute.h3: defaultStyles.h3!.style,
+      Attribute.h4: defaultStyles.h4!.style,
+      Attribute.h5: defaultStyles.h5!.style,
+      Attribute.h6: defaultStyles.h6!.style,
+    };
   }
 
   @override
@@ -232,7 +243,12 @@ class _QuillToolbarSelectHeaderStyleDropdownButtonState
             child: Text(
               header.value,
               style: TextStyle(
-                color: header.key == Attribute.header
+                fontSize: options.renderItemTextStyle
+                    ? _headerTextStyles[header.key]?.fontSize ??
+                        DefaultTextStyle.of(context).style.fontSize ??
+                        14
+                    : null,
+                color: header.key == _selectedAttribute
                     ? options.defaultItemColor
                     : null,
               ),