Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Retro Circles Background 4 No Black
Source GDJ
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
Prismatic Polyskelion Pattern No Background
Source GDJ
Just what the name says, paper fibers. Always good to have.
Source Heliodor jalba
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
A free seamless texture of reptile skin colored in a dark brown color. As always, you may use it as a repeated background image in your web design works, or for any other purposes.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A repeating graphic with ancient pattern. I came up with this name/title at last minute, so you may find that there is very little of ancientness in this pattern after all.
Source V. Hartikainen
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin