Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
Looks like an old wall. I guess that’s it then?
Source Viahorizon
From a drawing in 'Navigations de Alouys de Cademoste.-La Navigation du Capitaine Pierre Sintre', Alvise da ca da Mosto, 1895.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Greyscale version of a pattern that came out of playing with the 'slinky' plug-in for Paint.net
Source Firkin
Light gray pattern with an almost wall tile-like appearance.
Source Markus Tinner
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sharp but soft triangles in light shades of gray.
Source Pixeden
A seamless pale yellow paper background with a pattern of animal tracks.
Source V. Hartikainen
Classic vertical lines, in all its subtlety.
Source Cody L
A seamless stone-like background for blogs or any other type of websites.
Source V. Hartikainen
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
A seamless pattern the starting point for which was a 'rainbow twist' texture in Paint.net.
Source Firkin
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A light gray wall or floor (you decide) of concrete.
Source Atle Mo
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso