I've reskinned the menus across the OS, and it works brilliantly - except in the "Include in Library" dropdown of explorer where a folder is selected. Upon dropping that menu, it's mostly transparent because it fails to draw the background. As well, the entry image that I have set up with flat "normal" etc. states does not work, because it draws the highlighted version and then it remains highlighted when mousing off of that item. I tried various properties, including explicitly disabling transparency, etc.. Nothing works!
Other menus - even other explorer dropdowns like Organize - work fine. I've tried adding copies of my menu skin to various places in the theme, and can't seem to figure out why it draws so screwed up.
Help plz.
Edit: It also happens in breadcrumb dropdown menus.
Edit: I found it! O_O It's PopupBackground in Menu - dunno how I missed testing that.
HOWEVER - upon fixing that, the Organize/etc. dropdowns are now invisible entirely. O_o
Edit: Fixed!
Turns out Organize/Breadcrumbs/etc. use the border, so you MUST enable the border. Library button and it's friends use the image, so it can't be blank/transparent.