A well designed nice looking dark reading mode for the windows version like ios and android. the ios and android modes have a nice simple dark mode switch much like many apps and operating systems of today now have. I find it's clunky and outdated to still have the only option for changing PDF document viewing options to a night mode-ish for reading at night only in the accessibility options.. a simple switch for on off would be VERY overdue on this relatively expensive product. I find it rather odd that it still does not despite the mobile options already having this! lol sorry but I have to laugh as I can't believe UI designers haven't even added it in the last 3 years yet. PLEASE. this is highly overdue and I think would be a very popular feature.