From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
Source Firkin
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
From a drawing in 'Picturesque New Guinea', J Lindt, 1887.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
From an image on opengameart.org shared by rubberduck.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
A repeating background with dark brown stone-like texture and abstract pattern that looks like tree trunks.
Source V. Hartikainen
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A free background pattern with abstract green tiles.
Source V. Hartikainen
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Background Wall, Art Abstract, white Well & CC0 texture.
Source Ractapopulous
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin