Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Groovy Concentric Background 4
Source GDJ
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
It almost looks a bit blurry, but then again, so are fishes.
Source Petr Šulc
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Derived from an image that was uploaded to Pixabay by darkmoon1968
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Adapted from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Prismatic Groovy Concentric Background 5
Source GDJ
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
A floral background formed from numerous clones of flower 117.
Source Firkin
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin