Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A free repetitive background with a dark concrete wall like texture. This one may be used in dark web site designs.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Spice up your next school project with this icon background.
Source Swetha
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
The image is a seamless pattern of a fishnet.
Source Yamachem
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
This white background pattern has a seamless grunge style texture. Here's a white grunge style background pattern. Use it as a tiled background image on web sites or for other purposes.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry