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Packages/app.rive.rive-unity/Editor/Shaders/SRGBEncodePreview.shader

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+// Editor-only shader for Rive asset preview in the Unity Inspector.
+// This is a simple pass-through shader used ONLY for live preview in Linear color space projects in AssetEditor.cs.
+// 
+// Why pass-through?
+// - Rive outputs gamma into the RenderTexture
+// - EditorGUI.DrawPreviewTexture expects sRGB input for correct display
+// - We just pass the values through unchanged to avoid color conversion issues
+//
+// Note: Static preview uses a different path (Rive/UI/Default decode material + ReadPixels) so this shader is not used there.
+Shader "Hidden/Rive/Editor/SRGBEncodePreview"
+{
+    SubShader
+    {
+        Tags { "RenderType"="Opaque" "Queue"="Overlay" }
+        Pass
+        {
+            ZWrite Off
+            Cull Off
+            ZTest Always
+            Blend One Zero
+
+            HLSLPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv     : TEXCOORD0;
+            };
+
+            struct v2f
+            {
+                float4 pos : SV_POSITION;
+                float2 uv  : TEXCOORD0;
+            };
+
+            v2f vert(appdata v)
+            {
+                v2f o;
+                o.pos = UnityObjectToClipPos(v.vertex);
+                o.uv  = v.uv;
+                return o;
+            }
+
+            sampler2D _MainTex;
+
+            float4 frag(v2f i) : SV_Target
+            {
+                // Simple pass-through: Rive RenderTexture contains gamma values,
+                // return them unchanged for correct display in EditorGUI preview
+                float4 c = tex2D(_MainTex, i.uv);
+                return c;
+            }
+            ENDHLSL
+        }
+    }
+}