A pale olive green background with a seamless texture.
Source V. Hartikainen
A background pattern inspired by designs seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
A free seamless background image with a texture of dark red "canvas". It should look very nice on web sites.
Source V. Hartikainen
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Light square grid pattern, great for a “DIY projects” sort of website, maybe?
Source Rafael Almeida
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
Colour version of the original seamless pattern.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
A seamless pattern formed from background pattern 102
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne