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
Prismatic Geometric Tessellation Pattern No Background
Source GDJ
Everyone needs some stardust. Sprinkle it on your next project.
Source Atle Mo
Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
From a drawing in 'Resa i Afrika, genom Angola, Ovampo och Damaraland', P. Moller, 1899.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
It was called Navy Blue, but I made it dark. You know, the way I like it.
Source Ethan Hamilton
This ladies and gentlemen, is texturetastic! Love it.
Source Adam Pickering
The image depicts polka dot seamless pattern.
Source Yamachem