This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Prismatic Groovy Concentric Background No Black
Source GDJ
Lovely light gray floral motif with some subtle shades.
Source GraphicsWall
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Alternative colour scheme to the original.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Kaleidoscope Prismatic Abstract No Background
Source GDJ
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Nice and simple crossed lines in dark gray tones.
Source Stefan Aleksić
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
This background has abstract texture with some similarities to wood.
Source V. Hartikainen
A cute x, if you need that sort of thing.
Source Juan Scrocchi
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
Abstract Geometric Monochrome Pattern Prismatic No Background
Source GDJ
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i. Alternative colour scheme.
Source Firkin
Subtle scratches on a light gray background.
Source Andrey Ovcharov
A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Background Wall, Art Abstract, Blue Well & CC0 texture.
Source Ractapopulous