From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Pattern formed from simple shapes. Black version.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
This is the remix of "blue wave-seigaiha".This is the flowers of pink silk tree which is called "nemuno-ki".About pink silk tree ,refer to here:https://jp.pinterest.com/pin/500744052301210439/
Source Yamachem
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
I took the liberty of using Dmitry’s pattern and made a version without perforation.
Source Atle Mo
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
Square design drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers