Black paper texture, based on two different images.
Source Atle Mo
Based from Design Kindle
A seamless pattern created from a square tile. To get the tile, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
This one has rusty dark brown texture.
Source V. Hartikainen
Remixed from a drawing in 'Paul's Sister', Frances Peard, 1889.
Source Firkin
A seamless pattern with wide vertical stripes colored in pale yellow.
Source V. Hartikainen
Seamless pattern formed from a tile that can be had by selecting the rectangle in Inkscape and using shift-alt-i.
Source Firkin
Black & white version of a pattern that came out of playing with the 'light rays' plug-in for Paint.net
Source Firkin
Prismatic Floral Background No Black
Source GDJ
The file was named striped lens, but hey – Translucent Fibres works too.
Source Angelica