I hate color markup of my source code. I hate the color output of `ls`. It's not that I am some fanatic, craving back to the pre-web days. It's not that I go around telling people, in a bitter voice "life was better when virtual desktops were in 80x25 using the 'screen' tool!"
No, it's more related to running my 21 inch monitor in 1024x768. I want to be able to see what I am doing. The color stuff makes it @#$# impossibly to see. Too bright cyan colors. And odd greens. It's great to get cues as to what type of files are in the directory when you do an ls; but not at the expense of being able to read the filename.
Maybe it's helpful to color code HTML markup; but for perl code I prefer to keep the markup in the indention; and for ls output I'm just fine with seeing the filenames and knowing what type of file it is.
But don't despair, it's easy to fix ...