Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
New paper pattern with a slightly organic feel to it, using some thin threads.
Source Atle Mo
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
A seamless texture of an abstract wall colored in shades of light orange brown.
Source V. Hartikainen
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
Embossed lines and squares with subtle highlights.
Source Alex Parker
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec