An emulated “transparent” background pattern, like that of all kinds of computer graphics software.
Source AdamStanislav
The name tells you it has curves. Oh yes, it does!
Source Peter Chon
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
Spice up your next school project with this icon background.
Source Swetha
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
The image depicts a seamless pattern of pine tree leaves.
Source Yamachem
Prismatic Groovy Concentric Background No Black
Source GDJ
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Background formed from the original with an emboss effect.
Source Firkin
I know there is one here already, but this is sexy!
Source Gjermund Gustavsen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
Prismatic Curved Diamond Pattern 6 No Background
Source GDJ