Issues editing Fonts

Hello! I’m having some issues right now trying to edit a font so it can be outlined. I used create editable font all well and good (since i’m using Unity 4), however actually editing the .png file it gives me is giving me a lot of trouble. I open it in photoshop and edit my color outline i want, but then when i save it and try to use it in Unity, it’ll just turn into a square of the color it asks for in the inspector. and if i just change the color to say, green in photoshop, it doesn’t show up at all. Can anyone help me out a little? I’m not that experienced here lol i’m sorry

Try using this shader:

Shader "GUI/Textured Text Shader"
     {
     	Properties {
     		_MainTex ("Font Texture", 2D) = "white" {}
     		_Color ("Text Color", Color) = (1,1,1,1)
     	}
     	
     	SubShader {
     		Lighting Off
     		cull off
     		ztest always
     		Zwrite off
     		Fog { Mode Off }
     		Tags {"Queue" = "Transparent" }
     		Pass {
     			Blend SrcAlpha OneMinusSrcAlpha
     			SetTexture [_MainTex] {
     				constantColor [_Color]
     				Combine texture * constant, texture * constant
     			}
     		}
     	}
     }

Its on the wiki:
http://wiki.unity3d.com/index.php?title=TexturedFont