A seamless pattern made from the gold Penrose triangle by GDJ and the two remixes
Source Firkin
White handmade paper pattern with small bumps.
Source Marquis
A seamless background colored in pale orange. It has a paper like texture with diagonal grid pattern.
Source V. Hartikainen
A bit like some carbon, or knitted netting if you will.
Source Anna Litvinuk
This could be a hippy vintage wallpaper.
Source Tileable Patterns
Zero CC tileable bark texture, photographed and made by me. CC0
Source Sojan Janso
An attempt for cleaning up the original image in a few steps.
Source Lazur URH
Classic vertical lines, in all its subtlety.
Source Cody L
From a drawing in 'Les Chroniqueurs de l'Histoire de France depuis les origines jusqu'au XVIe siècle', Henriette Witt, 1884.
Source Firkin
Scanned some rice paper and tiled it up for you. Enjoy.
Source Atle Mo
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
From an image on opengameart.org shared by rubberduck.
Source Firkin
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
A seamless background texture of old cardboard.
Source V. Hartikainen
A large (588x375px) sand-colored pattern for your ever-growing collection. Shrink at will.
Source Alex Tapein
Three shades of gray makes this pattern look like a small carbon fiber surface. Great readability even for small fonts.
Source Atle Mo
Alternative colour scheme for the original floral pattern.
Source Firkin
Submitted as a black pattern, I made it light and a few steps more subtle.
Source Andy
Here's a camo print with more tan and less green, such as might be used in a desert scenario. This is tileable, so it can be used as a wallpaper or background.
Source Eady
I love cream! 50x50px and lovely in all the good ways.
Source Thomas Myrman
A dark one with geometric shapes and dotted lines.
Source Mohawk Studios
A pattern drawn in Paint.net and vectorized in Vector Magic.
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
Remixed from a drawing in 'Works. Popular edition', John Ruskin, 1886.
Source Firkin