Most of the things are working fine in Version 76.0.159.0 dev, and those which aren't, have already been addressed in many threads, I'm pointing out only those which havn't been discusseed:
1. In Dark mode, Also turn all the 'websites' and 'edge://____' pages dark, including settings, extensions and flags page.
2. It would be better if 'Sort By Name' feature [which is already present on edge://favorites/] will be available in drop-down menu in favourite's line, on top of the browser, below the address bar.
3. Give some shadows to the icons of the extensions on the top right corner. They looks waste without shadows in Dark Mode.
