Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Nicely crafted paper pattern, although a bit on the large side (500x593px).
Source Blaq Annabiosis
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Here's an yet another background for websites, with a seamless texture of wood planks this time.
Source V. Hartikainen
It’s like Shine Dotted’s sister, only rotated 45 degrees.
Source mediumidee
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
Tile-able Dark Brown Wood Background. Feel free to use it as a background image in your designs or somewhere on the web. By the way, the color seems to be close to Coffee Brown.
Source V. Hartikainen
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
If you want png files of thisu can download them here :
Source Viscious-Speed
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran