概要
This skill addresses a known rendering limitation in AvaloniaUI (Issue #19888) where RadialGradientBrush fails to display correctly if the GradientOrigin and Center values are not identical. It is particularly useful for developers migrating XAML from WPF to AvaloniaUI, as it detects property mismatches and provides an interactive prompt to select the preferred focal point, ensuring consistent and predictable visual output across cross-platform .NET applications.