Colour version that is close to the original drawing uploaded to Pixabay by pencilparker.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Tiny little flowers growing on your screen. Nice, huh?
Source Themes Tube
Seamless SVG vector and JPG backgrounds with faded diagonal stripes. The colors are editable.
Source V. Hartikainen
Seamless Prismatic Pythagorean Line Art Pattern No Background. A seamless pattern that includes the original tile (go to Objects / Pattern / Pattern To Objects in Inkscape's menu to extract it).
Source GDJ
Simple wide squares with a small indent. Fits all.
Source Petr Šulc.
A slightly more textured pattern, medium gray. A bit like a potato sack?
Source Bilal Ketab
White circles connecting on a light gray background.
Source Mark Collins
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Remixed from an image on Pixabay uploaded by Prawny
Source Firkin
Remixed from a drawing in 'Maidenhood; or, the Verge of the Stream', Laura Jewry, 1876.
Source Firkin
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Dark, crisp and subtle. Tiny black lines on top of some noise.
Source Wilmotte Bastien
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
Classic vertical lines, in all its subtlety.
Source Cody L
An alternative colour scheme to the original seamless pattern.
Source Firkin
Sometimes simple really is what you need, and this could fit you well.
Source Factorio.us Collective
A version without colours blended together to give a different look.
Source Firkin
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić