This background has abstract texture with some similarities to wood.
Source V. Hartikainen
Retro Circles Background 4 No Black
Source GDJ
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
This one is rather fun and playful. The 2X could be used at 1X too!
Source Welsley
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Prismatic Geometric Tessellation Pattern 3 No Background
Source GDJ
A seamless gray background texture suitable for use on websites. To me, it has the look of stone. Feel free to modify it to meet your needs (by making it a bit lighter or darker, for example).
Source V. Hartikainen
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
To celebrate the new feature, we need some sparkling diamonds.
Source Atle Mo
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
A seamless dark leather-like background texture with diagonal lines that look like stitches.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i
Source Firkin
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin