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 seamlessly tileable pink background texture.
Source V. Hartikainen
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
This was formed by distorting an image of a background on Pixabay.
Source Firkin
You were craving more leather, so I whipped this up by scanning a leather jacket.
Source Atle Mo
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Prismatic Polka Dots Mark II 3 No Background
Source GDJ
Prismatic Curved Diamond Pattern No Background
Source GDJ
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Classic 45-degree pattern, light version.
Source Luke McDonald
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Derived from a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
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
Kaleidoscope Prismatic Abstract No Background
Source GDJ
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
This background texture resembles stone. It may be used as a background on web pages or on some of their html elements (header, borders, menu bar, etc.). Just modify it for your needs.
Source V. Hartikainen
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
White circles connecting on a light gray background.
Source Mark Collins
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin