Blue noise textures by Christoph Peters, via Calinou/free-blue-noise-textures.
Upstream: https://github.com/Calinou/free-blue-noise-textures/blob/master/LICENSE.txt

To the extent possible under law, Christoph Peters has waived all copyright and 
related or neighboring rights to the files in this directory and its 
subdirectories. This work is published from: Germany. 

The work is made available under the terms of the Creative Commons CC0 Public 
Domain Dedication.

For more information please visit:
https://creativecommons.org/publicdomain/zero/1.0/