To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
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
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
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
Paper model of a tetrahedron. Modelo de papel de um tetraedro.
Source laobc
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
This one resembles a black concrete wall when is tiled. It should look great, at least with dark website themes.
Source V. Hartikainen
Zero CC tileable moss or lichen covered stone texture, edited from pixabay. CC0
Source Sojan Janso
Colorful Floral Background 3 No Black
Source GDJ
Zero CC tileable hard cover red book, scanned and made by me. CC0
Source Sojan Janso
Seamless tile drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
A seamless texture of black leather. I think it will look best when used in headers, footers or sidebars.
Source V. Hartikainen