avalonia
https://github.com/avaloniaui/avalonia
C#
A multi-platform .NET UI framework
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- Issues
- [Fluent] Five XAML-level defects discovered during a control-by-control "Avalonia.Themes.Fluent" controls axaml audit (CheckBox, RadioButton, Slider, Menu/MenuItem)
- Soft Hyphen (U+00AD) does not render a hyphen when a line break occurs
- Visual Studio 2026 hangs indefinitely while creating Avalonia Cross Platform Application
- Composition-aware drawings
- InvalidateVisual() doesn't provoke a repaint in Avalonia 12 under Android
- Emscripten/LLVM upgrade for Net11 preview 6
- TextWrapping=Wrap with paragraphWidth=0 creates one TextLineImpl per character — catastrophic allocation
- DrawerPage's Content does not inherit DataContext and NavigationPage.Navigation is null
- Inconsistent use of `IDispatcherImpl.CurrentThreadIsLoopThread`
- Please Support COLRv1 fonts
- Docs
- C# not yet supported