In the issue tracker when you create an issue, there is the top section with various fields and a large textarea for the body of the message. As odd as this may sound, a whole lot of users do not see this textarea. It does blend into the page and lacks the orange header label (like that you see when you submit a message).

Attached is a patch that adds the orange label (see attached png). it's admittedly a quick fix. because of how this page is structured (as three distinct tables), it could be a little nicer, but it does make the textarea more visible.

I'm not sure what the right procedure for changes to the core code is at this point, but this one is pretty small. if it looks ok i could just check it in directly.