Derived from an image that was uploaded to Pixabay by Darkmoon1968
Source Firkin
From a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin
Looks like an old wall. I guess that’s it then?
Source Viahorizon
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A huge one at 800x600px. Made from a photo I took going home after work.
Source Atle Mo
Seamless pattern formed from a square tile that can be retrieved in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
This is sort of fresh, but still feels a bit old school.
Source Martuchox
Looks like a technical drawing board: small squares forming a nice grid.
Source We Are Pixel8
Remixed from a drawing in 'A Child of the Age', Francis Adams, 1894.
Source Firkin
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Original minus the background
Source Firkin
Prismatic Curved Diamond Pattern No Background
Source GDJ
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo