This is a hot one. Small, sharp and unique.
Source GraphicsWall
Farmer could be some sort of fabric pattern, with a hint of green.
Source Fabian Schultz
The square tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
A tile-able background for websites with paper-like texture and a grid pattern layered on top of it.
Source V. Hartikainen
Abstract Tiled Background Extended 6
Source GDJ
Seamless Green Tile Background
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
A seamless canvas texture for using as background on websites. Colored in pale tones of brown.
Source V. Hartikainen
Abstract Tiled Background Extended 12
Source GDJ
Bigger is better, right? So here you have some large carbon fiber.
Source Factorio.us Collective
Classic vertical lines, in all its subtlety.
Source Cody L
A set of paper filters. The base texture is generated the same way, only the compositing mode is varied.
Source Lazur URH
A light background pattern with diagonal stripes. Here's a simple light striped background for you.
Source V. Hartikainen
A seamless pattern formed from a tile made from page ornament 22. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Wasn't satisfied with the original's colouring. Too much component transfer and colormatrixes yet the results are lacking a bit. So this time it is a simple black to transparent fade, making it possible remixing easily once there will be other blending modes supported as well. Probably in inkscape 0.92.
Source Lazur URH
This was formed by distorting an image of a background on Pixabay.
Source Firkin