Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
A white version of the very popular linen pattern.
Source Ant Ekşiler
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin
Seamless Light Background Texture.
Source V. Hartikainen
This one needs to be used in small areas; you can see it repeat.
Source Luca
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo