I use black as my windows background color, and grey as text color. The popuping refactor menu (after hovering a member and clicking the tiny appearing down arrow, for example) is unreadable because of coloring: grey text on grey background. The highlighted menuitem is light backgrounded, with greytext, also unreadable.
i can reproduce this effect. it looks like this is a known problem, now showing up on the refactoring menu
case=472
the work around for now is to use the VAssistX IDE menu -> refactoring sub menu. you may also be able to change your colour scheme slightly to make this popup menu more readable.