Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
A pattern formed from repeated instances of corner decoration 8. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
A nice and simple white rotated tile pattern.
Source Another One
Prismatic Snowflakes Pattern No Background
Source GDJ
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Never out of fashion and so much hotter than the 45º everyone knows, here is a sweet 60º line pattern.
Source Atle Mo
It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
This background image has seamless texture that resembles a surface of gray stone.
Source V. Hartikainen
The tile this is formed from can be retrieved 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
A light brushed aluminum pattern for your pleasure.
Source Tim Ward
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin