The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
The tile this is formed from can be retrieved in Inkscape by selecting the rectangle and using shift+alt+i
Source Firkin
A free pink background pattern.
Source V. Hartikainen
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Retro Circles Background 7 No Black
Source GDJ
So tiny, just 7 by 7 pixels – but still so sexy. Ah yes.
Source Dmitriy Prodchenko
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
Prismatic Abstract Geometric Background 4
Source GDJ
Remixed from a drawing in 'The Canadian horticulturist', 1892
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
Seamless pattern inspired by a drawing on Pixabay. To get the tile this is formed from, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Groovy Concentric Background 2 No Black
Source GDJ