It looks very nice I think.
Source V. Hartikainen
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
ZeroCC tileable stone texture, edited from pixabay, CC0
Source Sojan Janso
This could be a hippy vintage wallpaper.
Source Tileable Patterns
The base gradient edited so now more details are rendered.
Source Lazur URH
From a drawing in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Continuing the geometric trend, here is one more.
Source Mike Warner
Prismatic Geometric Pattern Variation 2 With Background
Source GDJ
From a drawing in 'A Rolling Stone. A tale of wrongs and revenge', John Hartley, 1878.
Source Firkin
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
This is sort of fresh, but still feels a bit old school.
Source Martuchox
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Here's a new paper-like background for free use on personal and commercial projects (this applies to all background patterns here).
Source V. Hartikainen