Trying to get a descriptions/explanation of the different Rendering points in the APEX Layout - specifically what the difference is between After Header and Before Regions and when you would use one over the other. I understand one is "After" the HTTP header and the other is most likely before APEX paints the regions in the DOM, but wondering more when you would use them. Seems to me you would just put everything in Before Header, no?
I've looked through the APEX docs and was not able to find anything regarding this, but possible I'm not using the correct terminology with my search keywords in the documentation. Can anyone provide links to help me learn more? My Google-fu has given me a few related hits, but for older versions of APEX and not really what i'm after.