rissoldmarmelada

Hi guys, I've gotten more and more interested in creating my own skin, but I quite like the default one... so I'll be changing a few small things such as the accent colors to club colors and the sidebar to black instead of purple... can you guys help me with that? I'm quite a noob when it comes to this type of stuff, so if you could explain this to me like I'm a 5-year-old it would be greatly appreciated