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://www.crxsoso.com/firefox/detail/into-the-black-hole/ Other themes: https://www.crxsoso.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