From an image on opengameart.org shared by rubberduck.
Source Firkin
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
The original enhanced with one of Inkscapes's filters.
Source Firkin
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Submitted in a cream color, but you know how I like it.
Source Devin Holmes
Zero CC tileable hard cover cells, skin like, book texture. 4K, Scanned and made by me CC0
Source Sojan Janso
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
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
Prepared mostly as a raster in Paint.net and vectorised.
Source Firkin
Element of beach pattern with background.
Source Rones
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
A cute x, if you need that sort of thing.
Source Juan Scrocchi
A version without colours blended together to give a different look.
Source Firkin
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Remixed from a drawing in 'Analecta Eboracensia', Thomas Widdrington, 1897.
Source Firkin
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
An interesting dark spotted pattern at an angle.
Source Hendrik Lammers
The image is a seamless pattern of a fishnet.
Source Yamachem