From a drawing in 'Two Women in the Klondike', Mary Hitchcock, 1899.
Source Firkin
Psychedelic Geometric Background No Black
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
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
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from an image that was uploaded to Pixabay by Pixeline
Source Firkin
Sometimes you just need the simplest thing.
Source Fabricio
From an image on opengameart.org shared by rubberduck.
Source Firkin
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Background formed from the original with an emboss effect
Source GDJ
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Sort of reminds me of those old house wallpapers.
Source Tish
Smooth Polaroid pattern with a light blue tint.
Source Daniel Beaton
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ