A dark metallic background with a pattern of stamped dots. Here's a dark "metallic" background pattern for you.
Source V. Hartikainen
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
Remixed from a PNG that was uploaded to Pixabay by VictorianLady
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
I love the movie Pineapple Express, and I’m also liking this Pineapple right here.
Source Audee Mirza
You know you love wood patterns, so here’s one more.
Source Richard Tabor
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Looks like an old rug or a computer chip.
Source Patutin Sergey
Prismatic Abstract Geometric Background 5
Source GDJ
This is a remix of "blue wave-seigaiha".I hope this subtle color version of Seigaiha would be suitable for background .
Source Yamachem
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Because I love dark patterns, here is Brushed Alum in a dark coating.
Source Tim Ward
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin