Dynamaxing uses the same logic as changing form mid-battle, which reupdates the stats and ability of the Pokemon. This needs to happen, since its possible for someone to make a custom G-Max or Eternamax form that has a different ability or stat spread from the base form of the Pokemon...
Yes, it is. The coordinates are obviously designed for the default UI.
The base numbers aren't 4, 0. They are @spriteBaseX + specialX + 4, 0. The X coordinates are calculated based on the bitmap base and then adjusted based on which side's databox its on (foe, player). Since youre using a...
Theoretically, I suppose. The Trainer Intro plugin does this, so you could emulate a similar behavior here. Youd probably have to change a lot, though.
Removing the plugin and reinstalling backups for all your Pokemon PBS files (forms included) should suffice. You can also go through the audio and graphics folders and delete any raid stuff too, if youd like, but it isnt necessary.
You do realize that this plugin and the Animated Pokemon plugin use completely different sprites and metrics files, right? You have to consider what it is you're actually installing/overwriting.
I dont know about you, but to me that sounds like a rather big issue to address. Bigger than before even, since now you don't even know where or how the v21 hotfix code is being applied, or what its even overwriting that is meant to function differently in v21.1. Sounds messy to me.
Anyway, as...
Any new sprites post-Gen 9 would have to be sent to me by people in the community, if people want them added. I have zero care or interest in finding or asking for them myself.