A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Prismatic Hypnotic Pattern No Background
Source GDJ
Inspired by a design found in 'Konstantinápolyi emlékeim', Miklos Chriszto, 1893.
Source Firkin
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
A free seamless background texture of "timber wall" (colored in dark brown).
Source V. Hartikainen
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
From a drawing in 'Less Black than we're painted', James Payn, 1884.
Source Firkin
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
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 tillable hard cover red book with X shape marks. Scanned and made by me.
Source Sojan Janso
A free tileable background colored in off-white (antique white) color.
Source V. Hartikainen
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
From a drawing in 'Artists and Arabs', Henry Blackburn, 1868
Source Firkin
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
Floral patterns might not be the hottest thing right now, but you never know when you need it!
Source Lauren