<PackageReference Include="System.Drawing.Common" Version="10.0.0-rc.2.25502.107" />

System.Drawing.SolidBrush

public sealed class SolidBrush : Brush
Defines a brush of a single color. Brushes are used to fill graphics shapes, such as rectangles, ellipses, pies, polygons, and paths. This class cannot be inherited.
namespace System.Drawing { public sealed class SolidBrush : Brush { public Color Color { get; set; } public SolidBrush(Color color); } }