res_ScrewGame/config/shader.fsh

varying vec2 v_texCoord;
uniform sampler2D u_texture;
void main(){
    vec4 c = texture2D(u_texture, v_texCoord).rgba;
    if(c.a>0.1) gl_FragColor=vec4(vec3(0.74)*0.8+c.rgb*0.2,1.0);
    else gl_FragColor=c;
}