uniform half4 colorGreen, colorRed;

half4 main(float2) {
    int counter = 0;

    const int increment = 1;
    for (int i = 0; i < 10; i += increment) {
        const int increment = 10;
        if (i == 0) {
            continue;  // `i += increment` should increment by 1
        }
        counter += increment;  // `counter += increment` should increment by 10
    }

    return (counter == 90) ? colorGreen : colorRed;
}