加入很多新内容，这波一块交了

Assets/scripts/rendering/GlobalMonochromeVolume.cs

@@ -0,0 +1,21 @@
+using System;
+using UnityEngine;
+using UnityEngine.Rendering;
+using UnityEngine.Rendering.Universal;
+
+[Serializable]
+[VolumeComponentMenu("Post-processing/Bansonic/Global Monochrome")]
+[SupportedOnRenderPipeline(typeof(UniversalRenderPipelineAsset))]
+public sealed class GlobalMonochromeVolume : VolumeComponent, IPostProcessComponent
+{
+    [Tooltip("Base monochrome intensity from the volume profile.")]
+    public ClampedFloatParameter intensity = new ClampedFloatParameter(0f, 0f, 1f);
+
+    [Tooltip("Whether this effect should run in SceneView cameras.")]
+    public BoolParameter affectSceneView = new BoolParameter(false);
+
+    public bool IsActive() => intensity.value > 0.0001f;
+
+    [Obsolete("Unused #from(2023.1)", false)]
+    public bool IsTileCompatible() => false;
+}