Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
Subtle scratches on a light gray background.
Source Andrey Ovcharov
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
It’s an egg, in the form of a pattern. This really is 2012.
Source Paul Phönixweiß
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
More tactile goodness. This time in the form of some rough cloth.
Source Bartosz Kaszubowski
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
This was formed by distorting an image of a background on Pixabay.
Source Firkin
A seamless background pattern of dark brown wood planks.
Source V. Hartikainen
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Almost like little fish shells, or dragon skin.
Source Graphiste
From a drawing in 'Studies for Stories', Jean Ingelow, 1864.
Source Firkin