I think I may fundamentally not understand what action and title safe margins are. In premiere, you can change what they are. For the sake of the example (and my work), I changed them both to 15% of a 1920x1080 frame. The left/right bars came in at 144 px & 1776px. But 15% of 1920 is 288. So why are the left/right bars not coming in at 288px and 1632px??
I would really love someone's guidance here. Thanks in advance!