A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'From Snowdon to the Sea. Striking stories of North and South Wales', Marie Trevelyan, 1895.
Source Firkin
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Background formed from the original with an emboss effect
Source GDJ
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ
Prismatic Polka Dots Mark II 2 No Background
Source GDJ
Prismatic Polka Dots 3 No Background
Source GDJ
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Black And White Floral Pattern Background Inverse
Source GDJ
A background pattern with blue on white vertical stripes.
Source V. Hartikainen
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
A bit of scratched up grayness. Always good.
Source Dmitry
Dark blue concrete wall with some small dust spots.
Source Atle Mo
A seamless web background with texture of aged grid paper.
Source V. Hartikainen
A nice and simple gray stucco material. Great on its own, or as a base for a new pattern.
Source Bartosz Kaszubowski
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Used a cherry by doctormo to make this seamless pattern
Source Firkin