From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
White circles connecting on a light gray background.
Source Mark Collins
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Prismatic Geometric Pattern Background No Black
Source GDJ
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Some dark 45 degree angles creating a nice pattern. Huge.
Source Dark Sharp Edges
Number 3 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Same classic 45-degree pattern, dark version.
Source Luke McDonald
Here's a dark background pattern that contains a steel grid pattern as a texture. Use it as a website background or for other purposes. It's free!
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
Could remind you a bit of those squares in Super Mario Bros, yeh?
Source Jeff Wall
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios