In this picture, there's no way to distinguish between disabled menu items and enabled menu items:

The "clean up blocks" and "redo" options are disabled but you can't tell without hovering over them (they won't have a blue background fill like enabled menu items).
Perhaps disabled menu items should have a light grey background?
Thanks for the report - we must have broken the CSS somewhere...
IMHO instead of a grey background it should be the text that becomes grey. That way it's very clearly _disabled_, as opposed to just being _different_.
@PullJosh I agree with that. Probably a light grey background, too, so it can stand out...
Fixed up with what there was previously (#ccc).
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IMHO instead of a grey background it should be the text that becomes grey. That way it's very clearly _disabled_, as opposed to just being _different_.