Into The Black Hole True

True Black Theme for all Chromium based browser, as well as Firefox. Chromium browsers include, but are not limited to:
Chrome, Chromium, Brave, Edge, etc.

Best used on an Amoled or Oled screen to take advantage of the improved contrast.

Features:
- Best text clarity
- Improved contrast between icons and background
- No grayed out inactive tabs

Firefox:
https://addons.mozilla.org/en-US/firefox/addon/into-the-black-hole/

Other themes:
https://chrome.google.com/webstore/detail/all-black-full-dark-theme/mkplpffahhkjfocfbfapcemhhkgmljpn?hl=en-US&authuser=1

Edge:
For version 81.0.394.0 you need to modify the shortcut for any themes to work at all.
Right click edge shortcut -> properties -> target -> append at the end --enable-features=msAllowThemeInstallationFromChromeStore
For version 82.0.444.0
Open the link and enable the flag. Link: edge://flags/#edge-allow-store-extension-themes