I just released a new theme, called Sand.
It's based off my Marine theme, changing the colors to a soothing beige and blue. As with marine, it uses a different structure for the dropdown menus on the user area, so a patch needs to be applied in order for it to work properly (instructions here) .
(click for full size view)
It's the theme I'm using for my own install of ppier (with a few slight mods), so I hope it's useful to someone else! :)