<PackageReference Include="System.Drawing.Common" Version="10.0.5" />

System.Drawing.Imaging.Effects.BlurEffect

public class BlurEffect : Effect
Applies a Gaussian blur.
namespace System.Drawing.Imaging.Effects { public class BlurEffect : Effect { public float Radius { get; } public bool ExpandEdge { get; } public BlurEffect(float radius, bool expandEdge); } }