Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
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
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using 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
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
Here's a brown background pattern with subtle stripes. I hope you'll like the color. If not, feel free to change it using an image editor, if you know how of course. Personally, I'm using GIMP to create these backgrounds.
Source V. Hartikainen
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
An abstract Background pattern of purple twisty patterns.
Source TikiGiki
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A bit strange this one, but nice at the same time.
Source Diogo Silva
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
Here's a seamless brown cork board background texture. Feel free to download or reshare if you like.
Source V. Hartikainen
One more in the line of patterns inspired by Japanese/Asian styles. Smooth.
Source Kim Ruddock
Some rectangles, a bit of dust and grunge, plus a hint of concrete.
Source Atle Mo
A seamless pattern formed from background pattern 102
Source Firkin
This is the remix of an Openclipart clipart called "Maze" uploaded by "any_ono_mous".Thanks.This is a seamless pattern of a maze.
Source Yamachem
Prismatic Abstract Background Design
Source GDJ
Fix and cc0 to get the tile this is based on.
Source SliverKnight
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Can never have too many knitting patterns, especially as nice as this.
Source Victoria Spahn