Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
The image is a design of blue glass.How about using it as background image?
Source Yamachem
A grayscale fabric pattern with vertical lines of stitch holes.
Source V. Hartikainen
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
The name is totally random, but hey, it sounds good.
Source Atle Mo
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Number five from the same submitter, makes my job easy.
Source Dima Shiper
Prismatic Hypnotic Pattern 2 No Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
Looks a bit like concrete with subtle specks spread around the pattern.
Source Mladjan Antic
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
Got some felt in my mailbox today, so I scanned it for you to use.
Source Atle Mo
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
Retro Circles Background 8 No Black
Source GDJ
Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin