function twentytwenty_customize_opacity_range() {
  
/**
 * Filters the input attributes for opacity.
 *
 * @since Twenty Twenty 1.0
 *
 * @param array $attrs {
 *     The attributes.
 *
 *     @type int $min  Minimum value.
 *     @type int $max  Maximum value.
 *     @type int $step Interval between numbers.
 * }
 */
  return apply_filters(
    'twentytwenty_customize_opacity_range',
    array(
      'min'  => 0,
      'max'  => 90,
      'step' => 5,
    )
  );
}