@mixin text-border {
  text-shadow:
    -1 * $border-width -1 * $border-width 0 $border-color,
    $border-width $border-width 0 $border-color,
    -1 * $border-width $border-width 0 $border-color,
    $border-width -1 * $border-width 0 $border-color;

  -gtk-icon-shadow:
    -1 * $border-width -1 * $border-width 0 $border-color,
    $border-width $border-width 0 $border-color,
    -1 * $border-width $border-width 0 $border-color,
    $border-width -1 * $border-width 0 $border-color;
}