> White space or negative space is important for usability Sure, I don’t deny it. However, just adding a ton of space doesn’t make a design good. Especially wh

> White space or negative space is important for usability Sure, I don’t deny it. However, just adding a ton of space doesn’t make a design good. Especially when you actively harm functionality while doing that. From my limited experience doing design, I’ve realized that good contrast and active visual demarcations go a long way towards that goal (both things which the new UI is sorely missing). See the old Mail UI: https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/Mail/macos-catalina-mail-inbox-multi-account.jpg https://support.apple.com/library/content/dam/edam/applecare... Notice the breadcrumbs that you could use to conveniently use as favorite inboxes. Those are gone now, which means that you have to keep the left sidebar always exposed (thus taking up significantly more horizontal space). This was what I think is really good design, thoughtful and non-intrusive. Not everyone is working on large screens. Adding a ton of padding to all UI elements doesn’t improve usability in the slightest, regardless of what you might say.