A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
A nice one indeed, but I have a feeling we have it already? If you spot a copy, let me know on Twitter.
Source Graphiste
I guess this is inspired by the city of Ravenna in Italy and its stone walls.
Source Sentel
From a drawing in 'Codogno e il suo territorio nella cronaca e nella storia'', Gio and Giarella Cairo, 1897.
Source Firkin
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
The image depicts a seamless pattern made using a bird's face.
Source Yamachem
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo
The act or state of corrugating or of being corrugated, a wrinkle; fold; furrow; ridge.
Source Anna Litvinuk
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Pattern formed from simple shapes. Black version.
Source Firkin
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A repeating background with wood/straw like texture.
Source V. Hartikainen
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo