
This is ultimately what I'm trying to make two separate screens or dialogue boxes for two separate characters as seen in this mock up below (made in After Effects, not Ren'Py). Yes, it looks awful, but that's okay right now.

Dialogue Box 1 (left) and Dialogue Box 2 (right) need to be on-screen at the same time with the inactive box dimming (or disappearing, but I prefer dimming) while the active box scrolls. I'd also like each box to be toggled on/off when needed in case there is only one character in the scene. Also would be excellent to have an "internal style" such as the above's example of Kyle's "This kid's a loon."
I also intended for scenes with more than two characters to use opposing boxes relating to their spatial position or reflective of their relationship with other characters in the scene so the boxes can't be locked to one character unless I'm also able to repeat the style over several characters.
Can anyone help me even get started? I'm very much a novice, but I do understand the fundamental basics and know how to utilize a guide or tutorial. But I'm looking for more specific advanced-level stuff and thought I'd finally try asking for help here.
Any help would be appreciated!
Thank you!