In retrospect, the Dark Theme on Microsoft Office was introduced back in 2016. Obviously, the Dark Theme was available on Office for Windows PCs only. Now that Apple also Dark-Themed their macOS in their latest update called macOS Mojave, Microsoft is all in with Office to complement Apple’s Dark Theme. A few days back the announcement about the existence of such project was made public on Twitter by the Office product manager.
Even though it is finally coming, the news is not all good as Dark Theme is rumored to be coming to those who use Office 365 subscription. Even the Office product manager Akshay Bakshi tweeted hinting at the same. Nevertheless, Dark Theme on Office for the latest macOS software is a reality and is rolling out to Office Insiders on mac.
Microsoft introduced Dark Theme on Outlook.com and the File Explorer a few months back.