Problem with alpha coloured shader

Questions & Answers
1

Whenever I make changes to the shader, it does not apply to the image. I change the _Color (“Main Color”, Color) = (0.1, 0, 0, 0.5) but no changes. And the effect is different in different images.

I have an image like this

21190-ira_n-01.png

And a custom shader (taken from Random Thoughts of a Game Developer: Creating a Colored Unlit Alpha Texture Shader for Unity)

Shader "NAKAI/Unlit/Transparent Colored" {
    Properties {
        // Adds Color field we can modify
        _Color ("Main Color", Color) = (1,1,1,1)
        _MainTex ("Base (RGB)", 2D) = "white" {}
    }
    
    SubShader {
        Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
        LOD 100
    
        ZWrite Off
        Blend SrcAlpha OneMinusSrcAlpha 

        Pass {
            Lighting Off
            SetTexture [_MainTex] { 
                // Sets _Color as the 'constant' variable
                constantColor[_Color]
                
                // Multiplies color (in constant) with texture
                combine constant * texture
            } 
        }
    }
}

Why the changes doesn’t take place and the effect is different? Is there something wrong with the shader? Do you have any other shader for alpha coloured?

2

You need to change the Main Color on the Material in the Inspector or Reset your Material Settings in the gear menu at the top/right