$styles->add( 'wp-jquery-ui-dialog', "/wp-includes/css/jquery-ui-dialog$suffix.css", array( 'dashicons' ) );
$styles->add( 'mediaelement', "/wp-includes/js/mediaelement/mediaelementplayer.min.css", array(), '2.13.0' );
$styles->add( 'wp-mediaelement', "/wp-includes/js/mediaelement/wp-mediaelement.css", array( 'mediaelement' ) );
- $styles->add( 'thickbox', '/wp-includes/js/thickbox/thickbox.css', array( 'dashicons' ), '20131201' );
+ $styles->add( 'thickbox', '/wp-includes/js/thickbox/thickbox.css', array( 'dashicons' ) );
// Deprecated CSS
$styles->add( 'media', "/wp-admin/css/deprecated-media$suffix.css" );