Default
What rox looks like out of the box: translucent surfaces, art tinting off.
Workspaces
A workspace is a whole look in one file: layout, palette, appearance. Load one from the welcome window or settings, change anything you like, and hand the file to someone else to get the same thing back. These five ship in the box.
Foobar
The layout this whole project is an argument with. Opaque, dense, OS decorations on, menubar where it always was.
Llama
WinAmp, in the way you remember it rather than the way it was. Tahoma, dark, no chrome.
Metro
Flat panels and comfortable rows with art theming on, so the palette follows whatever cover is playing.
Phosphor
Monospace everything. Consolas, no cover in quick play, a terminal that happens to play music.