A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
There are many carbon patterns, but this one is tiny.
Source Designova
A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
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
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Prismatic Groovy Concentric Background 2
Source GDJ
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Abstract Line Art Pattern Background
Source GDJ