Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
A classic dark tile for a bit of vintage darkness.
Source Listvetra
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Retro Circles Background 5 No Black
Source GDJ
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Green Web Background, Seamless tile.
Source V. Hartikainen
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
Prismatic Groovy Concentric Background 5
Source GDJ
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Seamless Prismatic Geometric Pattern With Background
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin