A seamless pattern the unit cell for which can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
More bright luxury. This is a bit larger than fancy deboss, and with a bit more noise.
Source Viszt Péter
Remixed from a drawing that was uploaded to Pixabay by DavidZydd
Source Firkin
Uses spirals from Pixabay. To get the basic tile select the rectangle in Inkscape and use shift+alt+i
Source Firkin
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
It’s big, it’s gradient—and it’s square.
Source Brankic1979
Inspired by the B&O Play, I had to make this pattern.
Source Atle Mo
A seamless pattern the starting point for which was a 'colour modulo' texture in Paint.net.
Source Firkin
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Remixed from a design seen in 'Burghley. The Life of William Cecil', William Charlton, 1857. The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
From a drawing in 'Hundert Jahre in Wort und Bild', S. Stefan, 1899.
Source Firkin
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
Love the style on this one, very fresh. Diagonal diamond pattern. Get it?
Source INS
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Awesome name, great pattern. Who does not love space?
Source Nick Batchelor
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Original seamless pattern with an Inkscape filter.
Source Firkin
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
Prismatic Geometric Tessellation Pattern 2 No Background
Source GDJ