Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
An abstract texture of water. It's not perfect, but will do. You may download if you like it.
Source V. Hartikainen
Prismatic Abstract Geometric Background 5
Source GDJ
Same as Silver Scales, but in black. Turn your site into a dragon with this great scale pattern.
Source Alex Parker
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
CC0 and seamless wellington boot pattern.
Source SliverKnight
Coming in at 666x666px, this is an evil big pattern, but nice and soft at the same time.
Source Atle Mo
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
A seamless web texture of "green stone".
Source V. Hartikainen
This background pattern contains a seamless texture of bark. It's not very realistic, but I think it looks quite nice.
Source V. Hartikainen
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
No idea what Nistri means, but it’s a crisp little pattern nonetheless.
Source Markus Reiter
Just the symbols of the signs of the zodiac distributed in a chequer board-like pattern
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
U.S.-based National Fire Protection Association standard fire diamond for flagging risks posed by hazardous materials. The red diamond has a number 0-4 depending on flammability. The blue diamond has a number 0-4 depending on health hazard. The yellow has a number 0-4 depending on reactivity. the white square has a special notice, e.g OX for oxidizer.
Source Firkin
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
Prismatic Curved Diamond Pattern 7 No Background
Source GDJ
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Might not be super subtle, but quite original in its form.
Source Alex Smith
A rusty grunge background for websites. Feel free to use it in your site's theme.
Source V. Hartikainen
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay