Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
Prismatic Abstract Line Art Pattern Background 2
Source GDJ
Prismatic Groovy Concentric Background
Source GDJ
Fabric-ish patterns are close to my heart. French Stucco to the rescue.
Source Christopher Buecheler
From a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Remixed from a design seen on Pixabay. The basic tile can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Based on an image that was uploaded to Pixabay by devanath
Source Firkin
Sort of like the Photoshop transparent background, but better!
Source Alex Parker
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
A pattern derived from repeating unit cells each derived from part of a fractal rendering in paint.net.
Source Firkin
Light and tiny, just the way you like it.
Source Rohit Arun Rao
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Prismatic Groovy Concentric Background 2 No Black
Source GDJ
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
There are many carbon patterns, but this one is tiny.
Source Designova
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
A frame using leaves from an image that was uploaded to Pixabay by mayapujiati
Source Firkin
Luxurious looking pattern (for a T-shirt maybe?) with a hint of green.
Source Simon Meek
Turn your site into a dragon with this great scale pattern.
Source Alex Parker