Shader Assitance: Sprite Outline Color, Hidden Object

Hi everyone. I'd some help adding Color to an outline sprite shader so it can be changed via inspector and a variant that only shows only the outline. (Blending Zero One and Culling did not work for me so far)

Any help to make these two edits would be greatly appreciated:

 Shader "Custom/2DSprite_OutlineShadow" {
     Properties 
     {
         _MainTex ("Base (RGB)", 2D) = "white" {}
         _OutLineSpread ("Outline Spread", Range(0,0.012)) = 0.007
     }
 
     SubShader
 
     {
         Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
         ZWrite On Blend One OneMinusSrcAlpha Cull Off
         LOD 110
         
         CGPROGRAM
         #pragma surface surf Lambert alpha
 
         struct Input 
         {
             float2 uv_MainTex;
             fixed4 color : COLOR;
         };
 
         sampler2D _MainTex;
         float _OutLineSpread;
         
         void surf(Input IN, inout SurfaceOutput o)
         {
             fixed4 mainColor = (tex2D(_MainTex, IN.uv_MainTex+float2(_OutLineSpread,_OutLineSpread)) + tex2D(_MainTex, IN.uv_MainTex-float2(_OutLineSpread,_OutLineSpread))) * fixed4(0,0,0,1);
             fixed4 addcolor = tex2D(_MainTex, IN.uv_MainTex) * IN.color;
 
             if(addcolor.a > 0.95){
             mainColor = addcolor;}
             
             o.Albedo = mainColor.rgb;
             o.Alpha = mainColor.a;
         }
         ENDCG       
     }
 
     SubShader 
     {
         Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
         ZWrite Off
         Blend One OneMinusSrcAlpha 
         Cull Off 
         Fog { Mode Off }
         
         LOD 100
         Pass {
             Tags {"LightMode" = "Vertex"}
             ColorMaterial AmbientAndDiffuse
             Lighting On
             SetTexture [_MainTex] 
             {
                 Combine texture * primary double, texture * primary
             }
         }
     }
     Fallback "Diffuse", 1
 }