<PackageReference Include="System.Drawing.Common" Version="11.0.0-preview.2.26159.112" />

Windows.Win32.Graphics.GdiPlus.LineCap

enum LineCap
namespace Windows.Win32.Graphics.GdiPlus { internal enum LineCap { LineCapFlat = 0, LineCapSquare = 1, LineCapRound = 2, LineCapTriangle = 3, LineCapNoAnchor = 16, LineCapSquareAnchor = 17, LineCapRoundAnchor = 18, LineCapDiamondAnchor = 19, LineCapArrowAnchor = 20, LineCapCustom = 255, LineCapAnchorMask = 240 } }