Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
A bit of scratched up grayness. Always good.
Source Dmitry
You can never get enough of these tiny pixel patterns with sharp lines.
Source Designova
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
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
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
Source Firkin
A series of 5 patterns. That’s what the P stands for, if you didn’t guess it.
Source Dima Shiper
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett