This pattern comes in orange, and it looks as if it is "made of glass".
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Polka Dots 3 No Background
Source GDJ
After 1 comes 2, same but different. You get the idea.
Source Hendrik Lammers
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Lovely pattern with some good-looking non-random noise lines.
Source Zucx
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
Horizontal and vertical lines on a light gray background.
Source Adam Anlauf
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Geometric Pattern Background
Source GDJ
A blue gray fabric-like texture for websites. An yet another fabric-like texture. It has subtle vertical and diagonal stripes to it.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
There are many carbon patterns, but this one is tiny.
Source Designova
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A very dark asfalt pattern based off of a photo taken with my iPhone.
Source Atle Mo
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau