Classics.

These are the wallpapers the site started with, made before there was a theme system: gradients, dunes, nebulae, aerial ocean, paper-cut mountains.

They share one quality — no horizon, or a horizon placed deliberately off-centre — which is the cheapest way to make a fold stop being visible. No clever concept, just colour and light.

If you do not want a picture on your phone at all, only a surface, this is where to look.