Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Colour version of the original pattern inspired by the front cover of 'Old and New Paris', Henry Edwards, 1894.
Source Firkin
A new one called white wall, not by me this time.
Source Yuji Honzawa
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
An alternative colour scheme to the original seamless pattern.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
A dark gray, sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A free grid paper background pattern for using on web sites.
Source V. Hartikainen