A light gray background pattern with seamless fabric-like texture and almost unnoticeable stripes.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Produced using the clouds, flames and glass blocks plug-ins in Paint.net and the resulting .PNG vectorised with Vector Magic.
Source Firkin
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
This is a hot one. Small, sharp and unique.
Source GraphicsWall
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Drawn in Paint.net and vectorised in Vector Magic
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Prismatic Groovy Concentric Background
Source GDJ
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
Abstract Tiled Background Extended 11
Source GDJ
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
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
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso