Geometric triangles seem to be quite hot these days.
Source Pixeden
Derived from a drawing in 'The Murmur of the Shells', Samuel Cowen, 1879.
Source Firkin
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
There are many carbon patterns, but this one is tiny.
Source Designova
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
This is a hot one. Small, sharp and unique.
Source GraphicsWall
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
The original has been presented as black on transparent and stored in the pattern definitions. To retrieve the unit tile 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
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Subtle scratches on a light gray background.
Source Andrey Ovcharov
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin