tokens: Image for Ok button : You need to change .ui-state-default , .ui-widget-content .ui-state-default , .ui-widget-header .ui-state-default background image .
ner_tags: B-User_Interface_Element O O B-User_Interface_Element O O O O O B-HTML_XML_Tag O B-HTML_XML_Tag I-HTML_XML_Tag O B-HTML_XML_Tag I-HTML_XML_Tag O B-User_Interface_Element O