To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Prismatic Abstract Geometric Background 4 No Black
Source GDJ
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
One more sharp little tile for you. Subtle circles this time.
Source Blunia
Prismatic Geometric Pattern Background
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Tiny little fibers making a soft and sweet look.
Source Badhon Ebrahim
Has nothing to do with toast, but it’s nice and subtle.
Source Pippin Lee
The name is totally random, but hey, it sounds good.
Source Atle Mo
A car pattern?! Can it be subtle? I say yes!
Source Radosław Rzepecki
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
A black tile-able background with paper-like texture.
Source V. Hartikainen
That’s what it is, a dark dot. Or sort of carbon looking.
Source Tsvetelin Nikolov
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
An orange vertically striped background pattern. Feel free to download and use this orange background pattern, for example, on the web). It resembles a wallpaper with vertical stripes or something similar to it.
Source V. Hartikainen