The Accordion Menu, Mega Menu and Simple Menu extensions are now compatible with jQuery UI 1.12 themes (WWB12).
Just in case someone is still using these...
Accordion Menu
http://wysiwygwebbuilder.com/accordionmenu.html
Mega Menu
http://wysiwygwebbuilder.com/megamenu.html
Simple Menu
http://wysiwygwebbuilder.com/simplemenu.html
You can also download the updated extensions via the Extension Manager: Menu->Tools->Extension Manager