[Wlug] 2.6.20-gentoo-R5

I've got my ULTRA1 Creator running 2.6.20-gentoo-R5. I am having senior moments. Too long since I have command line LINUX'd. Even longer since I have bash'd. My terminal display is different colors between files and directories which I do not like. Where is that defined? I will have many questions over the next couple of days. Please be forewarned. Ken Jones