It has waves, so make sure you don’t get sea sickness.
Source CoolPatterns
Looks like an old wall. I guess that’s it then?
Source Viahorizon
This one needs to be used in small areas; you can see it repeat.
Source Luca
Everyone loves a diamond, right? Make your site sparkle.
Source AJ Troxell
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
Bit of a strange name on this one, but still nice. Tiny gray square things.
Source Carlos Valdez
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This pack of filters can help you adding a blocky overlay to objects. May come handy at drawing blocks of stone.
Source Lazur URH
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
The green fibers pattern will work very well in grayscale as well.
Source Matteo Di Capua
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
A background tile of dark textile. Made this a long time ago and just now decided to publish it.
Source V. Hartikainen
From a drawing in 'Picturesque New Guinea', J Lindt, 1887.
Source Firkin
Actually, there's no clouds in it, but I think it looks quite nice.
Source V. Hartikainen
Prismatic Abstract Geometric Background 2 No Black
Source GDJ
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
From a drawing in 'Art Embroidery', M.S. Lockwood and E. Glaister, 1878.
Source Firkin
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
An alternative colour scheme to the original seamless pattern.
Source Firkin
Sounds like something from World of Warcraft. Has to be good.
Source Tony Kinard
You just can’t get enough of the fabric patterns, so here is one more for your collection.
Source Krisp Designs
Honestly, who does not like a little pipe and mustache?
Source Luca Errico
Subtle scratches on a light gray background.
Source Andrey Ovcharov