Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
A white version of the very popular linen pattern.
Source Ant Ekşiler
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Geometric lines are always hot, and this pattern is no exception.
Source Listvetra
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
This background pattern contains a texture of yellow wood planks. I think it looks quite original.
Source V. Hartikainen
8 by 8 pixels, and just what the title says.
Source pixilated
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry