Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Prismatic Abstract Geometric Background 5
Source GDJ
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Original minus the background
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
This one needs to be used in small areas; you can see it repeat.
Source Luca
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
This is a seamless pattern of a woody texture.The original image is here:https://pixabay.com/ja/users/ClassicallyPrinted-1302233/
Source Yamachem
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pale olive green background with a seamless texture.
Source V. Hartikainen
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin