The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Abstract Line Art Pattern Background
Source GDJ
You know you love wood patterns, so here’s one more.
Source Richard Tabor
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
Different from the original in being a simple tile stored as a pattern definition, rather than numerous repeated objects. Hence easy and quick to give this pattern to objects of different shapes. To get the tile in Inkscape, select the rectangle and use shift+alt+i.
Source Firkin
Tiny circle waves, almost like the ocean.
Source Sagive
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless texture of a rough concrete surface.
Source V. Hartikainen
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Used a cherry by doctormo to make this seamless pattern
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Medium gray pattern with small strokes to give a weave effect.
Source Catherine
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen