An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
From a drawing in 'Hyde Park from Domesday-Book to date', John Ashton, 1896.
Source Firkin
Looks like an old rug or a computer chip.
Source Patutin Sergey
A new one called white wall, not by me this time.
Source Yuji Honzawa
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
A browner version of the original weathered fence texture.
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Remixed from a drawing in 'Jezebel's Daughter', Wilkie Collins 1880
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous