I skipped number 3, because it wasn’t all that great. Sorry.
Source Dima Shiper
Mostly just mucked about with the colours and made one of the paths in the lead frame opaque. The glass remains transparent.
Source Firkin
Prismatic Isometric Cube Extra Pattern No Background
Source GDJ
Formed by heavily distorting part of a an image of a fish uploaded to Pixabay by GLady
Source Firkin
Prismatic Groovy Concentric Background 3
Source GDJ
Luxury pattern, looking like it came right out of Paris.
Source Daniel Beaton
Derived from a corner decoration itself found as a jpg on Pixabay.
Source Firkin
A monochrome pattern from a tile that can be had by selecting the rectangle in Inkscaope and using shift+alt+i
Source Firkin
Same as gray sand but lighter. A sandy pattern with small light dots, and some angled strokes.
Source Atle Mo
Design drawn in Paint.net, vectorised using Vector Magic and finished in Inkscape.
Source Firkin
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso
Abstract Ellipses Background Grayscale
Source GDJ
Prismatic Abstract Geometric Background 4
Source GDJ
Just to prove my point, here is a slightly modified dark version.
Source Atle Mo
From a drawing in 'At home', J. Sowerby, J. Crane and T. Frederick, 1881.
Source Firkin
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
An alternative colour scheme for the original background.
Source Firkin
Inspired by a pattern I saw in a 19th century book. This seamless pattern was created from a square tile. To get the tile, select the pattern in Inkscape and use shift+alt+i.
Source Firkin
A bit like smudged paint or some sort of steel, here is scribble light.
Source Tegan Male
Vertical lines with a bumpy, yet crisp, feel to it.
Source Raasa
Your eyes can trip a bit from looking at this – use it wisely.
Source Michal Chovanec
Zerro CC tillable texture of stones photographed and made by me. CC0
Source Sojan Janso