To be honest, I don't think it's possible to edit it that far. Since you can't change that in your Customization menu, it'd have to be something like a program that can change your Windows XP themes or something to that effect, to customize parts of a program that you can't edit within the program, your going to either need to learn some programming or find something that will allow you to do it.....sorry I couldn't help.
![Autodesk Design & Make Report](https://forums.autodesk.com/t5/image/serverpage/image-id/1350519iCB55845EBFC43016/image-size/large?v=v2&px=999" "Autodesk Design & Make Report")
