public function get_font_weights( $font, $font_type ) {

		/**
		 * Filter the array of weights for a font.
		 *
		 * @since 1.0.0
		 *
		 * @param string $font
		 * @param string $font_type
		 *
		 * @var array
		 */
		$weights = (array) apply_filters( 'rock_font_weights', array( 300, 400, 700 ), $font, $font_type );
		$weights = array_filter( array_map( 'absint', $weights ) );

		sort( $weights );

		return $weights;

	}