🐛 Bug: QuillSimpleToolbar does not follow app theme (especially dark mode)

[VivekYadavDeveloper]

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Flutter Quill Version

11.5.0

Steps to Reproduce

QuillSimpleToolbar does not properly inherit or follow the global app theme defined in ThemeData, especially in dark mode.

When using a dark background, the toolbar icons remain in their default colors (dark/blue), making them hard to see or completely invisible

Expected results

🎯 Expected Behavior

The toolbar should:

Automatically adapt to the app’s theme (ThemeData.light() / ThemeData.dark())
Use appropriate icon colors based on brightness
Match Material theming behavior like other Flutter widgets
Allow easy customization of toolbar appearance (colors, icons, background) without requiring deep overrides

Theme support is missing ❌
Customization is possible but not smooth ❌
Improvement is needed ✅

Actual results

❌ Actual Behavior
Toolbar icons remain default colored (not theme-aware)
In dark mode, icons are not visible on dark backgrounds
Requires manual override using iconTheme for proper display

Additional Context

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