The name is totally random, but hey, it sounds good.
Source Atle Mo
Prismatic Groovy Concentric Background No Black
Source GDJ
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
Inspired by a pattern found in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Prismatic Geometric Pattern Background 2
Source GDJ
Prismatic Groovy Concentric Background
Source GDJ
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
This tiled background comes in red and consists of tiles that look like gemstones. It is more for blogs or social profiles, I think.
Source V. Hartikainen
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Dark squares with some virus-looking dots in the grid.
Source Hugo Loning
Prismatic Snowflakes Pattern 2 No Background
Source GDJ
A seamless texture of a rough concrete surface.
Source V. Hartikainen
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin