Sounds French. Some 3D square diagonals, that’s all you need to know.
Source Graphiste
I’m guessing this is related to the Sony Vaio? It’s a nice pattern no matter where it’s from.
Source Zigzain
This one is something special. I’d call it a flat pattern, too. Very well done, sir!
Source GetDiscount
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Looks as if it's spray painted on the wall. You can be sure that this pattern will seamlessly fill your backgrounds on web pages.
Source V. Hartikainen
Zero CC tileable grass texture, photographed and made by me. CC0
Source Sojan Janso
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin