emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
ZeroCC tileable wood boards texture, photographed and made by me. CC0
Source Sojan Janso
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Prismatic Abstract Geometric Background 5
Source GDJ
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Prismatic Chevrons Pattern 5 With Background
Source GDJ
From a drawing in 'Jardyne's Wife', Charles Wills, 1891.
Source Firkin
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin