A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Sharp but soft triangles in light shades of gray.
Source Pixeden
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Prismatic Geometric Pattern Background 2
Source GDJ
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
Seamless Dark Grunge Texture. Here's a new grunge texture for use as a background.
Source V. Hartikainen
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin