t 60%, dark)`);
    test_computed_value(`font-palette`, `palette-mix(in oklab, light 10%, dark 40%)`, `palette-mix(in oklab, light 10%, dark 40%)`);

    // With sign() function
    test_computed_value(`font-palette`, `palette-mix(in oklab, light calc(sign(1rem - 1px) * 10%), dark calc(sign(1rem - 1px) * 40%))`, `palette-mix(in oklab, light 10%, dark 40%)`);


    // Color spaces parsing
    for (const colorSpace of [ "hsl", "hwb", "lch", "oklch", "lab", "oklab", "srgb", "srgb-linear", "xyz", "xyz-d50", "xy