After some testing with Office Insiders, the December 2018 update for Office 365 for Mac is now bringing dark theme support to all Mac users on macOS Mojave. If you have already enabled the system wide dark theme on the latest version of macOS, Word, Excel, Powerpoint and Outlook will automatically switch to dark mode once you install the latest Office build.
In addition to dark mode support, the December 2018 update also introduces new proofreading tools in PowerPoint, as well as the ability to insert a photo from your iPhone into your slides thanks to the Apple Continuity Camera feature. Outlook for Mac is also gained several new features including calendar sharing, the ability to use Microsoft Teams to connect to your meetings and more.
The first incremental update after Mojave's initial release, version 10.14.1, added support for Group FaceTime, but that proved something of a fiasco when a teenager discovered a major security flaw in the feature. That update also included 70 fun new emoji, and Apple has subsequently issued a further update (an updated subversion of version 10.14.3) that corrects the Group FaceTime flaw. Version 10.14.4 adds support for Touch ID-enabled Safari AutoFill and dark mode for websites that support it.
In addition to the security and continuity features mentioned, macOS 10.14.4 adds a few helpful new Safari improvements. Like Firefox, Safari now displays dark versions of webpages that offer a dark mode if you've set macOS to dark mode. It also will only offer a notification prompt after you've interacted with a website trying to get you to sign up. And Safari's password autofill now works with Touch ID on MacBooks with Touch Bar. 2b1af7f3a8