Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Classic 45-degree pattern, light version.
Source Luke McDonald
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
Number 1 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Seamless pattern formed from a tile that can be extracted by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
ZeroCC tileable mossy (lichen) stone texture, edited from pixabay. CC0
Source Sojan Janso
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
A seamlessly tileable pink background texture.
Source V. Hartikainen
Retro Circles Background 4 No Black
Source GDJ
Have you wondered about how it feels to be buried alive? Here is the pattern for it.
Source Hendrik Lammers
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin
From a drawing in 'Prose and Verse ', William Linton, 1836.
Source Firkin
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin