Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
A pattern formed from a photograph of a 16th century ceramic tile.
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
A seamless background pattern with impressed gray dots.
Source V. Hartikainen
People seem to enjoy dark patterns, so here is one with some circles.
Source Atle Mo
From drawing in 'Musings in Maoriland', Thomas Bracken, 1890.
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
A background tile for web with abstract repeating texture of dark "stone wall".
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Inspired by an image that was uploaded to Pixabay by geralt
Source Firkin
This beige background pattern resembles a concrete wall with engravings or something similar to it.
Source V. Hartikainen
Vector version of a JPG that was uploaded to Pixabay by theasad121
Source Firkin