Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
You could get a bit dizzy from this one, but it might come in handy.
Source Dertig Media
Prismatic Abstract Geometric Background 5 No Black
Source GDJ
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
Inspired by a 1930s wallpaper pattern I saw on TV.
Source Firkin
Inspired by a drawing in 'Kulturgeschichte', Freidrich Hellwald, 1896.
Source Firkin
A criss-cross pattern similar to one I saw mown into a sports field.
Source Firkin
It’s big, it’s gradient—and it’s square.
Source Brankic1979
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
I have no idea what J Boo means by this name, but hey – it’s hot.
Source j Boo
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Sharp but soft triangles in light shades of gray.
Source Pixeden
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
A seamless green background texture. The image is distributed under a Creative Commons License (like all of the images here).
Source V. Hartikainen
From a design in 'Storia del Palazzo Vecchio in Firenze', Aurelio Gotti, 1889.
Source Firkin
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A light brushed aluminum pattern for your pleasure.
Source Tim Ward