Why the wallpapers are free
People regularly ask why the full-resolution files are free to download. The honest answer: they started as a way to check how our colours hold up on different screens, and then friends kept asking for them.
The originals are large lossless PNGs, because compressing the grain turns it into mush. If a download is slow, it is simply a big file. Please do not re-upload them elsewhere; link to this page instead.