The image depicts a seamless pattern of a fishnet with a plenty of fish.It may be a lucky charm for fishermen.
Source Yamachem
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Based on several public domain drawings on Wikimedia Commons. This was formed from a rectangular tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i
Source Firkin
First pattern tailor-made for Retina, with many more to come. All the old ones are upscaled, in case you want to re-download.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
Pattern produced in Paint.net using the Vibrato plug-in.
Source Firkin
Prismatic Groovy Concentric Background 3 No Black
Source GDJ
Same classic 45-degree pattern, dark version.
Source Luke McDonald
You know, tiny and sharp. I’m sure you’ll find a use for it.
Source Atle Mo
A lovely light gray pattern with stripes and a dash of noise.
Source V. Hartikainen
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
A repeating background with wood/straw like texture.
Source V. Hartikainen
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Remixed from a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Not sure if this is related to the Nami you get in Google image search, but hey, it’s nice!
Source Dertig Media
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ