It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Light gray grunge wall with a nice texture overlay.
Source Adam Anlauf
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Number 5 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Zero CC bark from fur tree tileable texture, photographed and made by me. CC0
Source Sojan Janso
A colourful background drawn originally in paint.net and vectorised in Vector Magic.
Source Firkin
Prismatic Snowflakes Pattern No Background
Source GDJ
A seamless pattern of "sewn stripes" colored in light gray.
Source V. Hartikainen
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
A free grid paper background pattern for using on web sites.
Source V. Hartikainen