<PackageReference Include="System.Drawing.Common" Version="10.0.0-preview.7.25380.108" />

Windows.Win32.Graphics.GdiPlus.Rect

struct Rect
Contains a set of four floating-point numbers that represent the location and size of a rectangle.
namespace Windows.Win32.Graphics.GdiPlus { internal struct Rect { public static implicit operator Rectangle(Rect rect); public static implicit operator Rect(Rectangle rectangle); public static explicit operator RectF(Rect rect); } }