Filter: bsk_pdfm_filter_selector_option_prefix

All filters and hooks should be placed in your active theme’s functions.php file

bsk_pdfm_filter_selector_option_prefix

When show categories selector and hierarchical enabled there's a prefix text before category title. You may use this filter to change the default prefix.

Example

/**
 * Change the default AJAX loader image url
 * @var String $ajax_loader_url the defualt AJAX loader URL
 * @return new AJAX loader image url
 */
add_filter( "bsk_pdfm_filter_selector_option_prefix", "change_selector_option_prefix", 10, 2 );
function change_selector_option_prefix( $default_prefix, $current_depth ) {

    if( $current_depth == 1 ){
        return '++++ ';
    }
    
    if( $current_depth == 2 ){
        return '++++++++ ';
    }
}

Example Result