To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
A bit of scratched up grayness. Always good.
Source Dmitry
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
Prismatic Triangular Background Design Mark II 5
Source GDJ
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
A cute x, if you need that sort of thing.
Source Juan Scrocchi
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Prismatic Rounded Squares Grid 3 No Background
Source GDJ
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
If you don’t like cream and pixels, you’re in the wrong place.
Source Mizanur Rahman
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars