Tiny circle waves, almost like the ocean.
Source Sagive
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A bit strange this one, but nice at the same time.
Source Diogo Silva
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
An alternative colour scheme to the original seamless pattern.
Source Firkin