The first pattern on here using opacity. Try it on a site with a colored background, or even using mixed colors.
Source Nathan Spady
Fake or not, it’s quite luxurious.
Source Factorio.us Collective
Imagine you zoomed in 1000X on some fabric. But then it turned out to be a skeleton!
Source Angelica
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A pattern derived from part of a fractal rendering in Paint.net.
Source Firkin
A seamless pattern formed from a modified version of rwwgub's tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Non-seamless pattern drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
A new take on the black linen pattern. Softer this time.
Source Atle Mo
The tile this fill pattern is based on can be had by using shift+alt+i on the rectangle.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Tweed is back in style – you heard it here first. Also, the @2X version here is great!
Source Simon Leo
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Remixed from a JPG that was uploaded to Pixabay by Osckar
Source Firkin
A seamless pattern formed from background pattern 102
Source Firkin
Geometric triangles seem to be quite hot these days.
Source Pixeden
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Formed by distorting a JPG from PublicDomainPictures
Source Firkin
Cubes as far as your eyes can see. You know, because they tile.
Source Jan Meeus
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova