private function get_preview( $preview_size ) {
		$url    = $this->get_url( $preview_size );
		$return = null;
		if ( ! empty( $url ) ) {
			$return = '<img src="' . esc_attr( $url ) . '" class="uix-image-control-preview"><a href="#" class="uix-image-control-remove" data-target="' . $this->id() . '"><span class="dashicons dashicons-no"></span></a>';
		}

		return $return;
	}