To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Seamless Green Tile Background
Source V. Hartikainen
An alternative colour scheme to the original seamless pattern.
Source Firkin
Prismatic Groovy Concentric Background 4 No Black
Source GDJ
This is a seamless pattern of regular hexagon which has a honeycomb structure.
Source Yamachem
Dead simple but beautiful horizontal line pattern.
Source Fabian Schultz
CC0 remixed from a drawing. Walter Crane, 1914, Firkin.
Source SliverKnight
Prismatic Abstract Geometric Background 2
Source GDJ
Number 2 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Light and tiny, just the way you like it.
Source Rohit Arun Rao
I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Dark, lines, noise, tactile. You get the drift.
Source Anatoli Nicolae
Might not be super subtle, but quite original in its form.
Source Alex Smith
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless background drawn in Paint.net and vectorised with Vector Magic. The starting point was a photograph of drinking straws from Pixabay.
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