Are styles and features customizable?

I’ve been looking into web analytic tools for my .NET site, and I think I’m gonna go with Piwik on Arvixe hosting.

I’ve been looking at the dashboard on the demo, and I was wondering how customizeable everything is, like if I could do things like:

[li] Change flag/browser icon images
[/li][li] Change fonts/colors
[/li][li] Hide buttons like “Toggle fullscreen” on Visitor Countries map
[/li][li] Disable features like move/minimize/close on widgets
[/li][li] Load Piwik onto my own page, like