GUIText Outline Shader

Hello,

I want that My GUI Text should have outline using shader. I have very much succeeded in this. The only problem I am getting is that I am getting fragments at the borders. I have attached an image of text. Also I am putting code for this shader. I have already pixel corrected my GUI Text.

Can anybody help me in this scenario. I am very new in the shader writing.

Shader "GUI/Outline Text Shader" 
{
    Properties 
    {
        _MainTex ("Font Texture", 2D) = "white" {}
        _Color ("Text Color", Color) = (1,1,1,1)
        _OutlineColor ("Outline Color", Color) = (120,120,120,255)
		_Outline ("Outline width", Range (0, 1)) = 0
    }

    SubShader 
    {
        Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
        Lighting Off Cull Off ZTest off ZWrite Off Fog { Mode Off }
        Blend SrcAlpha OneMinusSrcAlpha

        Pass {    
            CGPROGRAM
            #pragma vertex vert
            #pragma fragment frag
            #pragma fragmentoption ARB_precision_hint_fastest
            #include "UnityCG.cginc"

            struct appdata_t {
                float4 vertex : POSITION;
                float2 texcoord : texcoord;
            };

            struct v2f {
                float4 vertex : POSITION;
                float2 texcoord : texcoord;
            };

            sampler2D _MainTex;
            uniform float4 _MainTex_ST;
            uniform float4 _Color;
            uniform float4 _OutlineColor;
            uniform float _Outline;

            v2f vert (appdata_t v)
            {
                v2f o;
                o.vertex = mul(UNITY_MATRIX_MVP , v.vertex );
                o.texcoord = TRANSFORM_TEX(v.texcoord ,_MainTex);
                return o;
            }

            float4 frag (v2f i) : COLOR
            {
                float4 col = _Color;
				float width = _Outline;
                if(tex2D(_MainTex, i.texcoord).a < 1 && tex2D(_MainTex, i.texcoord).a > 0)
                {
                    col = _OutlineColor ;
                }
                col.a *= tex2D(_MainTex, i.texcoord).a * 100;
                return col;
            }
            ENDCG 
        }
    }     
    Fallback "GUI/Text Shader"
}

Hello Oliver,

No. I didnt get any success with GUIText outline. Above shader gives output as in above text.png.