Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
This is a remix of "geometrical pattern 01".
Source Yamachem
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A seamless pattern formed from a tile made from ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Zero CC Mossy stone tileable texture, photographed and made by me. CC0
Source Sojan Janso
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin