Reuse of the color-yiq function

Created by: envolute

With a simple change it is possible to use the color-yiq function with other properties, not just "color"

// Color contrast
@mixin color-yiq($color, $prop: 'color') {
  $r: red($color);
  $g: green($color);
  $b: blue($color);

  $yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;

  @if ($yiq >= 150) {
    #{$prop}: #111;
  } @else {
    #{$prop}: #fff;
  }
}

.element-inside-primary {
  @include color-yiq(theme-color("primary"), 'background-color');
}

Just add the parameter "$prop: 'color'" that we can use other properties This can be interesting when you want to assign a background that contrasts with a color.