A seamless pattern the starting point for which was a 'light rays' rendering in Paint.net.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
One of the few full-color patterns here, but this one was just too good to pass up.
Source Alexey Usoltsev
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
He influenced us all. “Don’t be sad because it’s over. Smile because it happened.”
Source Atle Mo
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Abstract Ellipses Background Grayscale
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed