Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Embossed lines and squares with subtle highlights.
Source Alex Parker
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Looks like an old wall. I guess that’s it then?
Source Viahorizon
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
This one has rusty dark brown texture.
Source V. Hartikainen