I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Prismatic Basic Pattern 2 No Background
Source GDJ
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
A heavy hitter at 400x400px, but lovely still.
Source Breezi
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Abstract Geometric Background 5
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo