From an image on opengameart.org shared by rubberduck.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
Background formed from the original with an emboss effect.
Source Firkin
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
As simple and subtle as it gets. But sometimes that’s just what you want.
Source Designova
Tiny, tiny 3D cubes. Reminds me of the good old pattern from k10k.
Source Etienne Rallion
Background formed from the original with an emboss effect
Source GDJ
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
Not the most creative name, but it’s a good all-purpose light background.
Source Dmitry
Prismatic Floral Pattern 3 Variation 3 No Background
Source GDJ
Bright Multicolored Floral Background by Karen Arnold from PDP.
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
Bumps, highlight and shadows – all good things.
Source Badhon Ebrahim
A simple bump filter made upon request at irc #inkscape at freenode. Made a screen capture of the making here: https://youtu.be/TGAWYKVLxQw
Source Lazur URH
This is sort of fresh, but still feels a bit old school.
Source Martuchox
This was formed by distorting an image of a background on Pixabay.
Source Firkin
This is the remix of "Colorful Floral Pattern Background 3" uploaded by "GDJ". Thanks.
Source Yamachem
The basic shapes never get old. Simple triangle pattern.
Source Atle Mo
Prismatic Groovy Concentric Background No Black
Source GDJ