Zero CC tileable brick texture, photographed and made by me. CC0
Source Sojan Janso
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Not strictly seamless in that opposite edges are not identical. But they do marry up to make an interesting pattern
Source Firkin
A comeback for you: the popular Escheresque, now in black.
Source Patten
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
A fun-looking elastoplast/band-aid pattern. A hint of orange tone in this one.
Source Josh Green
Not the Rebel alliance, but a dark textured pattern.
Source Hendrik Lammers
Background formed from the iconic plastic construction bricks that gave me endless hours of fun when I was a lad.
Source Firkin
Seamless pattern the tile for which can be had by using shift-alt-I on the selected rectangle in Inkscape.
Source Firkin
The name is totally random, but hey, it sounds good.
Source Atle Mo
Colorful Floral Background No Black
Source GDJ
A seamless web texture with illustration of pale color stains on canvas.
Source V. Hartikainen
A free grid paper background pattern for using on web sites.
Source V. Hartikainen
Same as the black version, but now in shades of gray. Very subtle and fine grained.
Source Atle Mo
Prismatic Groovy Concentric Background 5 No Black
Source GDJ
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Pattern Background, Texture, Photoshop Structure style CC0 texture.
Source Darkmoon1968
Remixed from a PNG that was uploaded to Pixabay by k_jprather
Source Firkin
This background pattern contains worn out colorful stripes as a texture.
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin