Simple gray checkered lines, in light tones.
Source Radosław Rzepecki
Remixed from a design on Pixabay. To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Formed from a tile based on a drawing from 'Viaggi d'un artista nell'America Meridionale', Guido Boggiani, 1895.
Source Firkin
Simple combination of stripy squares with their negatively coloured counterparts
Source Firkin
ZeroCC tileable moss texture, photographed and made by me. CC0
Source Sojan Janso
One more brick pattern. A bit more depth to this one.
Source Benjamin Ward
Alternative colour scheme to the original.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
On a large canvas you can see it tiling, but used on smaller areas, it’s beautiful.
Source Paul Phönixweiß
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
A repeating background of beige (or is it more vanilla yellow) textured stripes. One more background with stripes.
Source V. Hartikainen
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
To get the tile this is based on select the rectangle in Inkscape and use shift+alt+i.
Source Firkin