Dark pattern with some nice diagonal stitched lines crossing over.
Source Ashton
Inspired by a drawing seen in 'City of Liverpool', James Picton, 1883.
Source Firkin
This ons is quite old school looking. Retro, even. I like it.
Source Arno Declercq
A seamless pattern formed from a square tile. The tile can be retrieved by selecting the rectangle in Inkscape and using shift-alt-I. Version with black background.
Source Firkin
The rectangular tile this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i
Source Firkin
Prismatic Abstract Geometric Background 4
Source GDJ
Prismatic Groovy Concentric Background 5
Source GDJ
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Derived from a drawing in 'Historiske Afhandlinger', Adolf Jorgensen, 1898.
Source Firkin
Prismatic Groovy Concentric Background No Black
Source GDJ
This is the remix of "Strawberry Pattern Background" uploaded by "GDJ". Thanks. I realigned strawberries so as to get seamless and changed the BG color.
Source Yamachem
A smooth mid-tone gray, or low contrast if you will, linen pattern.
Source Jordan Pittman
Derived from an image that was uploaded to Pixabay by mdmelo.
Source Firkin