From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Colour version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
To get the tile this is made up from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Abstract Tiled Background Extended 11
Source GDJ
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Prismatic Polka Dots Mark II No Background
Source GDJ
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
This is so subtle you need to bring your magnifier!
Source Carlos Valdez
From a drawing in 'Friend or Fortune? The story of a strange year', Robert Overton, 1897.
Source Firkin
The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Adapted from an image that was uploaded to Pixabay by Anerma.
Source Firkin
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward