Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
From an image on opengameart.org shared by rubberduck.
Source Firkin
A background formed from an image of an old tile on the New York Metropolitan Museum of Art website. To get the base tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Abstract Background Design No Black
Source GDJ
Thin lines, noise and texture creates this crisp dark denim pattern.
Source Marco Slooten
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
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
Background formed from the original with an emboss effect
Source GDJ
This one is amazing, truly original. Go use it!
Source Viahorizon
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
The starting point for this was drawn on the web site steamcoded.org/PolyskelionMaker.svg
Source Firkin
Lovely pattern with splattered vintage speckles.
Source David Pomfret
There are many carbon patterns, but this one is tiny.
Source Designova
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Not a flat you live inside, like in the UK – but a flat piece of cardboard.
Source Appleshadow
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
A re-make of the Gradient Squares pattern.
Source Dimitar Karaytchev
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
Prismatic Polka Dots Mark II No Background
Source GDJ