A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
This light yellow background pattern consists of an irregular pattern of spots. Here's a light background pattern with yellowish tint.
Source V. Hartikainen
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Groovy Concentric Background 2
Source GDJ
Prismatic Abstract Line Art Pattern Background
Source GDJ
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
Psychedelic Geometric Background No Black
Source GDJ
This is so subtle: We’re talking 1% opacity. Get your squint on!
Source Atle Mo