The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
Retro Circles Background 5 No Black
Source GDJ
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett