@use "sass:math";
@use "sass:color";

@function difference($minuend, $subtrahend) {
  @return color.adjust(
        $minuend,
        $red: - (color.red($subtrahend)),
        $green: - (color.green($subtrahend)),
        $blue: - (color.blue($subtrahend)));
}

@function screen($color1, $color2) {
  $r1: math.div(color.red($color1), 255);
  $g1: math.div(color.green($color1), 255);
  $b1: math.div(color.blue($color1), 255);

  $r2: math.div(color.red($color2), 255);
  $g2: math.div(color.green($color2), 255);
  $b2: math.div(color.blue($color2), 255);

  @return color.change(
        $color1,
        $red: ($r1 + $r2 - $r1 * $r2) * 255,
        $green: ($g1 + $g2 - $g1 * $g2) * 255,
        $blue: ($b1 + $b2 - $b1 * $b2) * 255);
}