Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens