A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
And some more testing, this time with Seamless Studio. It’s Robots FFS!
Source Seamless Studio
Colourful background achieved with gradient fills.
Source Firkin
Zero CC tileable ground (#2) cracked, crackled texture, made by me. CC0
Source Sojan Janso
A seamless background texture of old cardboard.
Source V. Hartikainen
Nasty or not, it’s a nice pattern that tiles. Like they all do.
Source Badhon Ebrahim
A seamless pattern from a tile made from a jpg on Pixabay. To get the tile select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Very simple, very blu(e). Subtle and nice.
Source Seb Jachec
A repeating background with wood/straw like texture.
Source V. Hartikainen
Can’t believe we don’t have this in the collection already! Slick woven pattern with crisp details.
Source Max Rudberg
Remixed from a drawing in 'Chambéry à la fin du XIVe siècle', Timoleon Chapperon, 1863.
Source Firkin
With a name this awesome, how can I go wrong?
Source Nikolay Boltachev
Sort of like the back of a wooden board. Light, subtle, and stylish, just the way we like it!
Source Nikolalek
Prismatic Polyskelion Pattern No Background
Source GDJ
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Inspired by a drawing in 'Poems', James Smith, 1881.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A classic dark tile for a bit of vintage darkness.
Source Listvetra
Prismatic Groovy Concentric Background 5
Source GDJ
Beautiful dark noise pattern with some dust and grunge.
Source Vincent Klaiber
Prismatic Curved Diamond Pattern 8 No Background
Source GDJ