I wish they had a higher resolution image available. This is really killer design. All UIs should be so easily understood.
The images in the post are full resolution, resized in CSS. In Firefox, I can right-click on the image and select "View Image", then left-click to see the full resolution image at its original scale.
Nice dark UI, I love the tooltips in the bottom left by the crab minigame.
Someone should put together a GTK theme like this.