Code-Snippets-Functions/Execute a function on a child site/WordPress/switch-sub-sizes-to-JPG.txt

function mysite_wp_image_editor_output_format( $formats ) {
    $formats['image/jpg'] = 'image/webp';
 
    return $formats;
}
add_filter( 'wp_image_editor_output_format', 'mysite_wp_image_editor_output_format' );