Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
From a drawing in 'In an Enchanted Island', William Mallock, 1892.
Source Firkin
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
Prismatic Groovy Concentric Background
Source GDJ
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Submitted by DomainsInfo – wtf, right? But hey, a free pattern.
Source DomainsInfo
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pale yellow background pattern with vertical stripes. The stripes are partially faded. I think this background image turned out pretty well, especially those faded stripes.
Source V. Hartikainen
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A brown seamless wood texture in a form of stripe pattern. The result has turned out pretty well, in my opinion.
Source V. Hartikainen
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Here's a subtle marble-like background for use on websites.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso