Header image alt attribute (fallback option)

Hi,

The WordPress core function for header images currently sets the alt attribute to the site name, yet it likely will change soon (WP 5.9). Then users can set their own custom text, or else the alt attribute would be empty. This should be an improvement except when those images are linked and users do not define the custom text. A directory search found four themes that can add a link on that image through the ‘get_header_image_tag’ filter, including Online Shop, SuperMag and SuperNews.

Could you edit the header image filters in your themes to provide a fallback when those images are linked? The function could have something like this (in SuperMag, it’s supermag\acmethemes\functions\header.php):

	if ( !empty( $supermag_header_image_link)) {
		$target = "";
		if( 1 == $supermag_header_image_link_new_tab ){
			$target = 'target = _blank';
		}
		$output .= '<a '.esc_attr( $target ) .' href="'.esc_url( $supermag_header_image_link ).'" title="'.esc_attr( get_bloginfo( 'name', 'display' ) ).'" rel="home">';
		$output .= str_replace( 'alt=""', 'alt="'.esc_attr( get_bloginfo( 'name', 'display' ) ).'"', $html );
		$output .= ' </a>';
	} else {
		$output .= $html;
	}

Thank you,
Stephen