Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This is sort of fresh, but still feels a bit old school.
Source Martuchox
From a drawing in 'Gately's World's Progress', Charles Beale, 1886.
Source Firkin
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
This makes me wanna shoot some pool! Sweet green pool table pattern.
Source Caveman
There are quite a few grid patterns, but this one is a super tiny grid with some dust for good measure.
Source Dominik Kiss
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
This yellow background consists of a pattern of glossy gold buttons arranged in polka dot style on a seamless texture. Here's a pale yellow background pattern. Feel free to use it for your needs!
Source V. Hartikainen
The image depicts a Japanese Edo pattern called "kanoko or 鹿の子" meaning "fawn" which has a fur with small white spots.
Source Yamachem
You know I’m a sucker for these. Well-crafted paper pattern.
Source Mihaela Hinayon
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
This is the remix of "polka dot seamless pattern".The image depicts polka dot seamless pattern.
Source Yamachem
Semi-light fabric pattern made out of random pixels in shades of gray.
Source Atle Mo