Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
This background pattern looks like bamboo to me. Feel free to download it for your website (for your blog perhaps?).
Source V. Hartikainen
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
No relation to the band, but damn it’s subtle!
Source Thomas Myrman
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
It looks like a polished stone surface to me. Download it for free, as always.
Source V. Hartikainen
Prismatic Snowflakes Pattern No Background
Source GDJ
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
One more sharp little tile for you. Subtle circles this time.
Source Blunia