Feel free to download and use it, or see the rest of the dark background patterns that I have made. Anyway, I hope you will find something that you like.
Source V. Hartikainen
A comeback for you: the popular Escheresque, now in black.
Source Patten
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
Remixed from a JPG that was uploaded to Pixabay by theasad121
Source Firkin
More carbon fiber for your collections. This time in white or semi-dark gray.
Source Badhon Ebrahim
There are many carbon patterns, but this one is tiny.
Source Designova
A textured blue background pattern with vertical stripes.
Source V. Hartikainen
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Continuing the geometric trend, here is one more.
Source Mike Warner
Prismatic Curved Diamond Pattern 3 No Background
Source GDJ
Inspired by a pattern I saw in a 19th century book. This seamless pattern was created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Found on the ground in french cafe in kunming, Yunnan, china
Source Rejon
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard