Background Wall, Art Abstract, Block Well & CC0 texture.
Source Ractapopulous
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
Abstract Arbitrary Geometric Background derived from an image on Pixabay.
Source GDJ
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
The classic notebook paper with horizontal stripes.
Source Are Sundnes
Dark wooden pattern, given the subtle treatment. based on texture from Cloaks.
A repeating background with seamless texture of stone. There haven't been any stone-like backgrounds for a while, so I have decided to create one more. The rest can be found in the appropriate category.
Source V. Hartikainen
Derived from a JPG that was uploaded to Pixabay by ractapopulous
Source Firkin
A black tile-able background with paper-like texture.
Source V. Hartikainen
Prismatic Abstract Background Design No Black
Source GDJ
Remixed from a drawing in 'A Girl in Ten Thousand', Elizabeth Meade, 1896.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
An abstract web texture of a polished blue stone (or does it look more like ice).
Source V. Hartikainen
Just like the black maze, only in light gray. Duh.
Source Peax
Formed by distorting the inside front cover of 'Diversæ insectarum volatilium : icones ad vivum accuratissmè depictæ per celeberrimum pictorem', Jacob Hoefnagel, 1630.
Source Firkin
A good starting point for a cardboard pattern. This would work well in a variety of colors.
Source Atle Mo
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
A free seamless background texture that looks like a brown stone wall.
Source V. Hartikainen
A grid of squares with green colours. Since the colours are randomly distributed it is automatically seamless.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin