Customizing cpanel CSS (style sheet)

Ok, I got my cpanel branding images to work, so it displays my custom images instead of the basic blue theme in my reseller account.

Now I want to customize the cpanel stylesheet to match the images I'm using, and so I don't have that ugly blue/teal scroll bar in cpanel anymore! I got the stylesheet downloaded and changed, but can't figure out where to upload it to replace the current one. Where do I put it?

[conticreative]

Well, this is a post from 2004. #1 on Google when searching for CSS cpanel customization. Is it possible that no one had an answer in almost 3 years?

[slapshotw]

The RVSkins aren't bad if you really hate the default look.

[esl]

I like the basic cPanel look with just adding my logo personally.