I encourage you to edit the SiteStyle to make it your own. These SiteStyles are there to help you, but if everyone used them without changing them, then the World Wide Web would be a boring place. The easiest way to change the look of a style is to change the font used on banners and buttons this alone can customize an entire site in just six clicks. Your style can look like new. Kill the urge for overkill One final note here.
Balance is the key.
When you begin to venture into the realms of color and graphics, it is easy to go into overkill. When you go too far, you lose your user, usually for good. Too much movement or too many contrasting colors and fonts and so on. So, instead of staying and trying to figure out what the site is doing and how to use it, the user will bail leave. And you lose a user for good.