CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
A very dark spotted twinkle pattern for your twinkle needs.
Source Badhon Ebrahim
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
With a name like this, it has to be hot. Diagonal lines in light shades.
Source Isaac
Nice little grid. Would work great as a base on top of some other patterns.
Source Arno Gregorian
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Just like your old suit, all striped and smooth.
Source Alex Berkowitz
Prismatic Abstract Line Art Pattern Background
Source GDJ
This reminds me of Game Cube. A nice light 3D cube pattern.
Source Sander Ottens
Feel free to use this seamless background texture as a background on a web site. It's colored in a light pink color and is seamlessly tile-able.
Source V. Hartikainen
The tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Just like the black maze, only in light gray. Duh.
Source Peax
Prismatic Polka Dots 3 No Background
Source GDJ
A seamless striped fabric-like texture colored in a dark reddish brown color.
Source V. Hartikainen
A seamless pattern formed from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
Floral patterns will never go out of style, so enjoy this one.
Source Lasma
I’m starting to think I have a concrete wall fetish.
Source Atle Mo
Looks like an old rug or a computer chip.
Source Patutin Sergey
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin