A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Seamless Olive Green Web Background Image
Source V. Hartikainen
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Here's a repeatable texture that resembles a light green concrete wall or something similar.
Source V. Hartikainen
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
From a drawing in 'An Old Maid's Love. A Dutch tale told in English', Maarten Maartens, 1891.
Source Firkin
Colour version of the original pattern.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Prismatic Abstract Background Design No Black
Source GDJ
Seamless Green Tile Background
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
A nice looking light gray background pattern with diagonal stripes.
Source V. Hartikainen
A floral background formed from numerous clones of flower 117.
Source Firkin
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
A bit simplified version. Although it could be edited out to be simpler. Anyway, this time the tiling is converted to a pattern fill -which is using clipping for the tile's edges.
Source Lazur URH
Remixed from a raster on Pixabay that was uploaded by ArtsyBee.
Source Firkin