CC0 and seamless wellington boot pattern.
Source SliverKnight
Zero CC tileable hard cover cells book texture, 4k, scanned and made by me. CC0
Source Sojan Janso
Prismatic Abstract Geometric Background 5
Source GDJ
A seamless marble-like texture colored in light blue.
Source V. Hartikainen
A seamlessly tileable pink background texture.
Source V. Hartikainen
Almost like little fish shells, or dragon skin.
Source Graphiste
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH
Brushed aluminum, in a bright gray version. Lovely 2X as well.
Source Andre Schouten
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
Background pattern originally a PNG drawn in Paint.net
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
This one is amazing, truly original. Go use it!
Source Viahorizon
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
Prismatic Groovy Concentric Background 5
Source GDJ
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
An alternative colour scheme to the original seamless pattern.
Source Firkin
A dark background pattern/texture of a dimpled metal plate.
Source V. Hartikainen
Prismatic Geometric Pattern Background No Black
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien