One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
This is so subtle I hope you can see it! Tweak at will.
Source Alexandre Naud
A seamless design of flowers remixed from a jpg on Pixabay by Prawny.
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
A seamless paper background colored in pale yellow.
Source V. Hartikainen
A seamless pattern drawn originally in Paint.net by distorting a slice of background pattern 116 and copying the resulting triangle numerous times.
Source Firkin
8 by 8 pixels, and just what the title says.
Source pixilated
From a design found in 'History of the Virginia Company of London; with letters to and from the first Colony, never before printed', Edward Neill, 1869.
Source Firkin
Used in small doses, this could be a nice subtle pattern. Used on a large surface, it’s dirty!
Source Paul Reulat
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
The image depicts a seamless pattern of a tortoise in tortoiseshell (hexagon).
Source Yamachem
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
To get the repeating unit, select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
I have no idea how to describe this one, but it’s light and delicate.
Source JBasoo
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous