1
2out vec4 sk_FragColor;
3uniform vec4 colorWhite;
4uniform vec4 colorGreen;
5uniform vec4 colorRed;
6vec4 main() {
7    vec2 x = colorWhite.xy;
8    x = -x;
9    return x == vec2(-1.0) ? colorGreen : colorRed;
10}
11