From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
Element of beach pattern with background.
Source Rones
From a drawing in 'La Principauté de Liège et les Pays-Bas au XVIe siècle', Société des Bibliophiles Liégeois ,1887.
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
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
Love me some light mesh on a Monday. Sharp.
Source Wilmotte Bastien
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Inspired by this, I came up with this pattern. Madness!
Source Atle Mo
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Recreated from a pattern found in 'Az Osztrák-Magyar Monarchia irásban és képben', 1882. To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Some more diagonal lines and noise, because you know you want it.
Source Atle Mo
From an image on opengameart.org shared by rubberduck.
Source Firkin
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Background pattern made in "Grunge-Like" style. Available in both SVG and JPG formats. Edit to your needs then click the download button.
Source V. Hartikainen
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
More in the paper realm, this time with fibers.
Source Jorge Fuentes
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby