A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Pattern formed from simple shapes. Black version.
Source Firkin
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Hexagonal dark 3D pattern. What more can you ask for?
Source Norbert Levajsics
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
Different from the original in being a simple tile stored as a pattern definition, rather than numerous repeated objects. Hence easy and quick to give this pattern to objects of different shapes. To get the tile in Inkscape, select the rectangle and use shift+alt+i.
Source Firkin