These three formatting options have permeated our usage across all apps.
Building a word editor? Better have B, I, and U as functions.
Will there ever be a fourth option that will become as pervasive as this one?
There have been pretenders – semi-bold, heavy-bold, double-line, dotted-line – but nothing has come close to challenging the originals.
Will we ever discard one over the other?
Unknown at this time.