Add Support for Shorthand Hex Color String in SolidColorBrush etc · Issue #3706 · AvaloniaUI/Avalonia · GitHub
Solid Color Brush In Code with SolidColorBrush and RGB color : Brush « Windows Presentation Foundation « C# / CSharp Tutorial
From a Hex string using ColorConverter : Color « Windows Presentation Foundation « C# / CSharp Tutorial
![Professional WPF Programming: .NET Development with the Windows Presentation Foundation | Semantic Scholar Professional WPF Programming: .NET Development with the Windows Presentation Foundation | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/a6adc552ea6127fc8073343740086bcdbfdbcc2c/188-Figure6-1-1.png)