Might not be super subtle, but quite original in its form.
Source Alex Smith
emixed from a JPG that was uploaded to Pixabay by Kyotime
Source Firkin
From a drawing in 'A Life Interest', Mrs Alexander, 1888.
Source Firkin
Hey, you never know when you’ll need a bird pattern, right?
Source Pete Fecteau
This was formed by distorting an image of a background on Pixabay.
Source Firkin
Alternative colour scheme to the original.
Source Firkin
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Original minus the background
Source Firkin
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
8 by 8 pixels, and just what the title says.
Source pixilated
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background pattern originally a PNG drawn in Paint.net
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A playful triangle pattern with different shades of gray.
Source Dimitrie Hoekstra
A comeback for you: the popular Escheresque, now in black.
Source Patten
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
A repeating background with dark brown stone-like texture and abstract pattern that looks like tree trunks.
Source V. Hartikainen
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Dark and hard, just the way we like it. Embossed triangles makes a nice pattern.
Source Ivan Ginev
To get the tile this is formed from select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso