Figma is trademarking the word 'Dev Mode' and is sending cease and desists

Discussion on original source (50 points, 8 comments) <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=43694350">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=43694350</a>

How was “Dev Mode” copyrighted? Seems like a pretty common phrase before Figma adopted it.