Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
Super detailed 16×16 tile that forms a beautiful pattern of straws.
Source Pavel
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Remixed from an image on Pixabay, the original having been uploaded by darkmoon1968.
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Small gradient crosses inside 45-degree boxes, or bigger crosses if you will.
Source Wassim
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Alternative colour scheme. 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
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 for the original floral pattern.
Source Firkin
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
Looks like an old rug or a computer chip.
Source Patutin Sergey
If you like it a bit trippy, this wave pattern might be for you.
Source Ian Soper
Sharp pixel pattern, just like the good old days.
Source Paridhi
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin