A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Sharp diamond pattern. A small 24x18px tile.
Source Tom Neal
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Light gray version of the Binding pattern that looks a bit like fabric.
Source Newbury
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A very slick dark rubber grip pattern, sort of like the grip on a camera.
Source Sinisha
Prismatic Chevrons Pattern 5 With Background
Source GDJ
8 by 8 pixels, and just what the title says.
Source pixilated
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Formed from decorative divider 184 in paint.net. Vectorised with Vector Magic.
Source Firkin
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857.
Source Firkin
Prismatic Curved Diamond Pattern 2 No Background
Source GDJ
A dark brown fabric-like background texture with seamless pattern of winding stripes.
Source V. Hartikainen
Abstract Tiled Background Extended 10
Source GDJ
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
More leather, and this time it’s bigger! You know, in case you need that.
Source Elemis
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Retro Circles Background 8 No Black
Source GDJ
Washi (和紙?) is a type of paper made in Japan. Here’s the pattern for you!
Source Carolynne
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin