CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A version without colours blended together to give a different look.
Source Firkin
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
By popular request, an outline version of the pentagon pattern.
Source Atle Mo
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Feel free to download this "Dark Wood" background texture for your web site. The background tiles seamlessly!
Source V. Hartikainen
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
A seamless pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen
A seamless background pattern with a texture of wood planks. This wood background pattern has vertically arranged planks. You may try to rotate it 90°, to see how it will look like when the wood planks are arranged horizontally.
Source V. Hartikainen
Light and tiny, just the way you like it.
Source Rohit Arun Rao
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
A free web background image with a seamless concrete-like texture and an Indian-red color.
Source V. Hartikainen
Prismatic Curved Diamond Pattern No Background
Source GDJ