Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A bit strange this one, but nice at the same time.
Source Diogo Silva
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
I asked Gjermund if he could make a pattern for us – result!
Source Gjermund Gustavsen
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
This was formed by distorting an image of a background on Pixabay.
Source Firkin