A hint of orange color, and some crossed and embossed lines.
Source Adam Anlauf
This one is super crisp at 2X. Lined paper with some dust and scratches.
Source HQvectors
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo
Classic vertical lines, in all its subtlety.
Source Cody L
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
A free seamless background image with abstract texture of green "curtain".
Source V. Hartikainen
This is the third pattern called Dark Denim, but hey, we all love them!
Source Brandon Jacoby
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
A pattern derived from repeating unit cells each derived from part of a mosaic in paint.net. The starting point for the mosaic was a picture of some prawns!
Source Firkin
Utilising some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Prismatic Polyskelion Pattern No Background
Source GDJ
This one could be the shirt of a golf player. Angled lines in different thicknesses.
Source Olivier Pineda
Inspired by a JPG that was uploaded to Pixabay by kokon_art
Source Firkin
Seamless Olive Green Web Background Image
Source V. Hartikainen
The unit cell for this seamless pattern can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
This one takes you back to math class. Classic mathematic board underlay.
Source Josh Green
Pattern #100! A black classic knit-looking pattern.
Source Factorio.us Collective
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem