Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by captenpub.
Source Firkin
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
In the spirit of WWDC 2011, here is a dark iOS inspired linen pattern.
Source Atle Mo
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
Prismatic Polka Dots Mark II No Background
Source GDJ
Formed by distorting an image on Pixabay that was uploaded by gustavorezende. To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Black version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
From a drawing in 'A Rolling Stone. A tale of wrongs and revenge', John Hartley, 1878.
Source Firkin
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski