Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
This one has rusty dark brown texture.
Source V. Hartikainen
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Zero CC tileable dry grass texture, photographed and made by me. CC0
Source Sojan Janso
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
The base gradient edited so now more details are rendered.
Source Lazur URH
This is a grid, only it’s noisy. You know. Reminds you of those printed grids you draw on.
Source Vectorpile
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
Same classic 45-degree pattern, dark version.
Source Luke McDonald
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A seamless pattern formed from background pattern 102
Source Firkin
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Sharp pixel pattern, just like the good old days.
Source Paridhi
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Colourful background achieved with gradient fills.
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker