True Dark Black Theme, easy for the eyes, fitted for any type of display, but especially for Amoled screens

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"