Menucolors is a patch that allows you to colorize individual rows on a menu based on what regular expressions match its text. The patch was written by paxed and can be found here. You can color the inventory menu, the spellcasting menu, the enhance menu, the options menu, and more. Menucolors are currently only supported in a terminal and (partially) in the Windows GUI. The menucolors patch also supports globbing instead of regular expressions; the resulting menucolors are far less powerful, but are more portable.