Strange Galaxy by irinden

Simple static theme. Enjoy!

Features

• seamless non-intrusive background image
• non-transparent drop-down menus and popups
• icy light blue text, icons, icons on hover
• bright light blue selected elements
• borderless selected tab (highlighted with bright light blue text and transparent light purple background color)

Created with Firefox Color.
Screenshot by me from modified video game The Elder Scrolls V: Skyrim Special Edition. Modifications: Skyrim Textures Redone Enhanced Night Sky by Gorgulla, ENBSeries by Boris Vorontsov, Aequinoctium, Aequinoctium ENB by Arindel, Luminosity by JonnyWang.
Seamless transition for image was added with Paint.NET.
Image was optimized with pingo.

Changelog
Version 1.2 (2021-09-12)
Added icon, few color adjustments for version 92:

• new tab page background (Firefox home page) is slightly darker now for better visibility of highlighted icon tiles
• changed popup colors to a more neutral (bluish grey), with this change bookmark toolbar drop-down menus are more distinguishable and easier to read on dark themed web-pages

Version 1.1 (2021-06-05)

• added seamless transition for image to support large displays
• changed image height from 400 to 200 px according to documentation (no visual changes with this update for users of previous version)
• changed color of the new tab page background (Firefox home page) to dark grey (slightly bluish) to match better with the rest of UI
• updated border and background color of popups and drop-down menus, so that it won't blend with the sidebar