I’m glad you ask about things you don’t know. You’re a smart person.
A dead name is a person’s given name, in the context of a person having transitioned to a different gender and also changing their name to match the gender they identify as. It is bad form to then continue to call them by their birth name.
The trouble is that, apparently, “perfect UI” can mean “let’s take all the sidebar tabs, remove their text labels and make all their icons really abstract and in the same colour. Oh, and change their order, too, while you’re at it.”
Thank you from the bottom of my muscle memory and pattern recognition. Now, give us back our the UI that was actually meaningful, or at least make it an option if you insist that your “clean look” is more important than actual usability.
^(Apart from that, I love you JetBrains.)