Remixed from a raster on Pixabay, that was uploaded by ArtsyBee.
Source Firkin
From a drawing in 'Uit de geschiedenis der Heilige Stede te Amsterdam', Yohannes Sterck, 1898.
Source Firkin
Tile available in Inkscape using shift-alt-i on the selected rectangle
Source Firkin
Detailed but still subtle and quite original. Lovely gray shades.
Source Kim Ruddock
These dots are already worn for you, so you don’t have to.
Source Matt McDaniel
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Heavily remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
Prismatic Groovy Concentric Background
Source GDJ
Drawn in Paint.net using the kaleidoscope plug-in and vectorised.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Fix and cc0 to get the tile this is based on.
Source SliverKnight
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
From a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
Seamless tile drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein