Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
From an image on opengameart.org shared by rubberduck.
Source Firkin
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Abstract Background Design
Source GDJ
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
Traced from a drawing in 'Household Stories from the Collection of the Brothers Grimm', Wilhelm Carl Grimm , 1882.
Source Firkin
Prismatic Abstract Geometric Background 2
Source GDJ
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
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Oh yes, it happened! A pattern in full color.
Source Atle Mo
Derived from an image that was uploaded to Pixabay by TheDigitalArtist
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective