I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Prismatic Abstract Background Design No Black
Source GDJ
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Remixed from a drawing in 'Canadian forest industries July-December', 1915
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
This was submitted in a beige color, hence the name. Now it’s a gray paper pattern.
Source Konstantin Ivanov
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A cute x, if you need that sort of thing.
Source Juan Scrocchi
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Prismatic Groovy Concentric Background No Black
Source GDJ
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
The image depicts the Japanese Edo pattern called "seigaiha" or "青海波" meaning "blue -sea- wave".I hope it's suitable for the summer season.
Source Yamachem
Honestly, who does not like a little pipe and mustache?
Source Luca Errico