Greyscale version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
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
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Basket Fibers, Basket Texture, Braid Background style CC0 texture.
Source 1A-Photoshop
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Background pattern originally a PNG drawn in Paint.net
Source Firkin
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Zero CC asphalt, pavement, texture, photographed and made by me. CC0 WARNING I FOUND A SEAM ON THIS TEXTURE
Source Sojan Janso
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
There are many carbon patterns, but this one is tiny.
Source Designova
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Zero CC tileable Crackled Cement (streaks) texture, photographed and made by me. CC0
Source Sojan Janso
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin