apply transparent png, material color shine through

you just need to make a one geometry (little smaller to draw behind texture) with solid diffuse green color and the second one with transparency shader and your texture attached

the best way is to write own shader, it's will be a very simple shader. better to take one that can do everyting you want but havn't a color at write 2-3 rows to it with multiply by Color. may be "Transparent/Diffues" or "Transparent/Cutout/Diffuse"?

Shader "Diffuse colored in alpha" { Properties { _Color ("Main Color", Color) = (1,1,1,1) _MainTex ("Base (RGBA)", 2D) = "white" {} } SubShader { Tags { "RenderType"="Opaque" } LOD 250

     CGPROGRAM
     #pragma surface surf Lambert

     sampler2D _MainTex;
     fixed4 _Color;

     struct Input
     {
         float2 uv_MainTex;
         float2 uv_DecalTex;
     };

     void surf (Input IN, inout SurfaceOutput o)
     {
         fixed4 c = tex2D(_MainTex, IN.uv_MainTex);
         o.Albedo = lerp(_Color, c.rgb, c.a);
         o.Alpha = 1;
     }
     ENDCG
 }
 Fallback "Diffuse"

}

OK, thank you very much - doesn't look that compicated. I will try it out!