Search Yourself! No one can tell you Everything you need to know!
Wow, how many of these threads are on here?? There's almost more of these type of threads that ask the same questions than there is posts with pics of work or more specific questions/ideas. If you really want to know about customizing, then maybe you should know how to put in the effort to search yourself. There's 50 million threads that answer this same question 50 million times. You don't even need to google it. just scroll down once on this forum and i bet you'll find your answers before you get to the bottom.