Colourful background achieved with gradient fills.
Source Firkin
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ
Remixed from an image that was uploaded to Pixabay by KirstenStar
Source Firkin
Prismatic Geometric Pattern Background 2 No Black
Source GDJ
A white version of the very popular linen pattern.
Source Ant Ekşiler
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Free tiled background with colorful stripes and white splatter.
Source V. Hartikainen
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Turn your site into a dragon with this great scale pattern.
Source Alex Parker
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Prismatic Polka Dots 3 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
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
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
A seamless light gray paper texture with horizontal double lines.
Source V. Hartikainen
Spice up your next school project with this icon background.
Source Swetha
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
A beautiful dark wood pattern, superbly tiled.
Source Omar Alvarado
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle