uniform half4 colorGreen, colorRed, colorWhite;

float4 main(float2) {
    half4 result = colorGreen;

    bool trueCondition = bool(colorGreen.g);
    bool falseCondition = bool(colorGreen.r);

    if (trueCondition) {
        if (falseCondition) {
            result = colorRed;
        }
    } else {
        result = colorRed;
    }

    return result;
}