Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Background formed from the original with an emboss effect
Source GDJ
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Stefan is hard at work, this time with a funky pattern of squares.
Source Stefan Aleksić
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Prismatic Hypnotic Pattern No Background
Source GDJ
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
You don’t see many mid-tone patterns here, but this one is nice.
Source Joel Klein
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Sharp pixel pattern looking like some sort of fabric.
Source Dmitry
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Very dark pattern with some noise and 45-degree lines.
Source Stefan Aleksić
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
The following orange background pattern resembles a honeycomb.
Source V. Hartikainen
Remixed from a drawing in 'Line and form", Walter Crane, 1914.
Source Firkin
Did anyone say The Hoff? This pattern is in no way related to Baywatch.
Source Josh Green