Same classic 45-degree pattern, dark version.
Source Luke McDonald
From a drawing in 'Cowdray: the history of a great English House', Julia Roundell, 1884.
Source Firkin
An abstract pale yellow paper-like background with stains colored in yellow and green.
Source V. Hartikainen
Prismatic Curved Diamond Pattern 4 No Background
Source GDJ
Might not be super subtle, but quite original in its form.
Source Alex Smith
CC0 and a seamless pattern from a tile drawn in Paint.net .
Source SliverKnight
A beautiful dark padded pattern, like an old classic sofa.
Source Chris Baldie
Derived from an image that was uploaded to Pixabay by pugmom40
Source Firkin
Seamless , tileable CC-0 texture. Created by my own, feel free to use wherever you want!
Source Linolafett
Could be paper, could be a Polaroid frame – up to you!
Source Chaos
Colour version of the original pattern.
Source Firkin
A seamless pattern from a tile drawn in Paint.net and vectorised in Vector Magic
Source Firkin
This is the remix of "Background pattern 115" uploaded by "Firkin".Thanks.
Source Yamachem
From a drawing in 'The Quiver of Love', Walter Crane, 1876
Source Firkin
A light gray fabric pattern with faded vertical stripes.
Source V. Hartikainen
A comeback for you: the popular Escheresque, now in black.
Source Patten
Little x’es, noise and all the stuff you like. Dark like a Monday, with a hint of blue.
Source Tom McArdle
A repeatable image with dark background and metal grid pattern.
Source V. Hartikainen
Abstract Stars Geometric Pattern Prismatic No Background
Source GDJ
Drawn in Paint.net and vectorised in Vector Magic.
Source Firkin
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
No, not the band but the pattern. Simple squares in gray tones, of course.
Source Atle Mo