Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Seamless Prismatic Quadrilateral Line Art Pattern No Background
Source GDJ
You know you love wood patterns, so here’s one more.
Source Richard Tabor
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
You may use it as is, or modify it as you like.
Source V. Hartikainen
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Redrawn based on a drawing in 'По Сѣверо-Западу Россіи' Konstantin Sluchevsky, 1897.
Source Firkin
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
A seamlessly tile-able grunge background image.
Source V. Hartikainen
Zero CC tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
This seamless light brown background texture resembles a wallpaper with vertical stripes. One way to use it is as a tiled background on web sites.
Source V. Hartikainen
A repeating background with wood/straw like texture.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin