Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica
Like the name says, light and gray, with some small dots and circles.
Source Brenda Lay
Prismatic Triangular Background Design Mark II 5
Source GDJ
I love these crisp, tiny, super subtle patterns.
Source Badhon Ebrahim
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Rounded Squares Grid 4 No Background
Source GDJ
A pattern formed from a squared tile. The tile can be accessed in Inkscape by selecting the rectangle and using shift-alt-i.
Source Firkin
It’s okay to be square! A nice light gray pattern with random squares.
Source Waseem Dahman
The classic subtle pattern. Sort of wall/brick looking. Or moon-looking?
Source Joel Klein
You know you can’t get enough of these linen-fabric-y patterns.
Source James Basoo
We have some linen patterns here, but none that are stressed. Until now.
Source Jordan Pittman
A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH