To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
ZeroCC tileable stone texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'Bond Slaves. The story of a struggle.', Isabella Varley, 1893.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
A comeback for you: the popular Escheresque, now in black.
Source Patten
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Prismatic Abstract Geometric Background 2
Source GDJ
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
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee