A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Prismatic Polyskelion Pattern No Background
Source GDJ
From an image on opengameart.org shared by rubberduck.
Source Firkin
The image is the remix of "wire-mesh fence seamless pattern" .This is a more minute version of it.Sorry for the file size.Using path>difference in Inkscape, I will cut out any silhouette from this pattern and create a "meshed silhouette".
Source Yamachem
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
Colorful Floral Background 3 No Black
Source GDJ
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
A seamless web texture of "green stone".
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Classic vertical lines, in all its subtlety.
Source Cody L
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Fix side and a seamless pattern formed from circles.
Source SliverKnight
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
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
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper