A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A bit of scratched up grayness. Always good.
Source Dmitry
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
A version without colours blended together to give a different look.
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
One more from Badhon, sharp horizontal lines making an embossed paper feeling.
Source Badhon Ebrahim
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin