COZY 3 debug fog shader

Shader "Debug/COZY 3 Fog"
{
    Properties
    {
        [Toggle] _Enable("Enable Fog", Float) = 1
    }

    SubShader
    {
        Tags { "RenderPipeline" = "UniversalPipeline" "RenderType" = "Transparent" "Queue" = "Transparent" }
        Blend SrcAlpha OneMinusSrcAlpha, One OneMinusSrcAlpha
        //ZTest LEqual
        ZWrite Off

        Stencil { Ref 221 Comp Always Pass Replace }

        Pass
        {
            Name "ForwardLit"
            Tags { "LightMode" = "UniversalForward" }

            HLSLPROGRAM
            #pragma target 3.0
            #pragma vertex vert
            #pragma fragment frag
            #pragma multi_compile_fog

            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
            #include "Packages/com.distantlands.cozy.core/Runtime/Shaders/Includes/StylizedFogIncludes.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                UNITY_VERTEX_INPUT_INSTANCE_ID
            };

            struct v2f
            {
                float4 pos          : SV_POSITION;
                float3 positionWS   : TEXCOORD1;
                float fogFactor     : TEXCOORD2;

                UNITY_VERTEX_INPUT_INSTANCE_ID
                UNITY_VERTEX_OUTPUT_STEREO
            };

            bool _Enable;

            v2f vert(appdata v)
            {
                v2f o;

                UNITY_SETUP_INSTANCE_ID(v);
                UNITY_TRANSFER_INSTANCE_ID(v, o);
                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);

                o.pos = TransformObjectToHClip(v.vertex.xyz);
                o.positionWS = TransformObjectToWorld(v.vertex.xyz);
                o.fogFactor = ComputeFogFactor(o.pos.z);

                return o;
            }

            half4 frag(v2f i) : SV_Target
            {
                UNITY_SETUP_INSTANCE_ID(i);
                UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i);

                float3 color = 0;

                if(_Enable == false) return float4(color.rgb, 1.0);

                float3 foggedColor = BlendStylizedFog(i.positionWS, float4(color.rgb, 1.0)).rgb;

                //Default Unity fog
                //foggedColor = MixFog(color.rgb, i.fogFactor);

                return float4(foggedColor.rgb, 1.0);

            }
            ENDHLSL
        }
    }
}