The HoverImage doesn't show up in menus, no
matter if it's a "MenuItem" in a "Menu", a "MenuItem" in a "MenuPopup" or a
"Menu" in a "MenuBar". When the mouse moves over the menus, the Zclass "-over"
is applied to the menu, but it doesn't change the image. below is the test ZUL.
<zk>
<menubar id="menubar" width="100%">
<menu label="Menu"
image="/img/Centigrade-Widget-Icons/Briefcase-16x16.png"
hoverImage="/img/Centigrade-Widget-Icons/BriefcaseOpen-16x16.png">
<menupopup>
<menuitem image="/img/Centigrade-Widget-Icons/BriefcaseSpark-16x16.png"
label="MenuItem in MenuPopup"
hoverImage="/img/Centigrade-Widget-Icons/DoorOpen-16x16.png" />
</menupopup>
</menu>
<menuitem image="/img/Centigrade-Widget-Icons/QuestionmarkButton-16x16.png"
label="MenuItem in MenuBar"
hoverImage="/img/Centigrade-Widget-Icons/DisketteBlack-16x16.png" />
</menubar>
</zk>
fixed since 2011/05/20
It has to test with all of components that extends LabelImageElement.
Fixed since 2011/7/5.