Not even 1kb, but very stylish. Gray thin lines.
Source Struck Axiom
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A mid-tone gray pattern with some cement looking texture.
Source Hendrik Lammers
From an image on opengameart.org shared by rubberduck.
Source Firkin
A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
This one is so simple, yet so good. And you know it. Has to be in the collection.
Source Gluszczenko
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
The name alone is awesome, but so is this sweet dark pattern.
Source Federica Pelzel
Remixed from a drawing in 'Some account of the Worshipful Company of Ironmongers', John Nicholl, 1866.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Background formed from the original with an emboss effect
Source GDJ
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Number 4 in a series of 5 beautiful patterns. Can be found in colors on the submitter’s website.
Source Janos Koos
An alternative colour scheme to the original seamless pattern.
Source Firkin
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
A bit strange this one, but nice at the same time.
Source Diogo Silva
Sharp pixel pattern, just like the good old days.
Source Paridhi
If you’re sick of the fancy 3D, grunge and noisy patterns, take a look at this flat 2D brick wall.
Source Listvetra
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Clean and crisp lines all over the place. Wrap it up with this one.
Source Dax Kieran
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo