A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Alternative colour scheme for the original floral pattern.
Source Firkin
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
Dark blue concrete wall with some small dust spots.
Source Atle Mo
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
Original seamless pattern with an Inkscape filter.
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
It’s a hole, in a pattern. On your website. Dig it!
Source Josh Green
A version without colours blended together to give a different look.
Source Firkin