And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A slightly grainy paper pattern with small horizontal and vertical strokes.
Source Atle Mo
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
A repeating background for websites with a texture of black groove stripes.
Source V. Hartikainen
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Don’t look at this one too long if you’re high on something.
Source Luuk van Baars
Used correctly, this could be nice. Used in a bad way, all hell will break loose.
Source Atle Mo
A free background pattern with abstract green tiles.
Source V. Hartikainen
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin