Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
A pattern drawn in Paint.net and vectorized in Inkscape.
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
White handmade paper pattern with small bumps.
Source Marquis
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
It looks very nice I think.
Source V. Hartikainen
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia