Been meaning to do that for a while now, thanks 🫶

Everything seems fine to me (I still have to test it though).

Just a curiosity: was there a specific reasoning behind e.g. in SCUMM v8 naming op 103 to SO_ANIMATION_DEFAULT instead of SO_ACTOR_ANIMATION_DEFAULT?

Thank you!
Yes, I have tried to match the names with the mode(?) of other engine versions as much as I could,
so it'll easier for us to connect them for comparison.

I am undecided about the force-pushed fix (renaming SO_SHADOW to SO_SPECIAL_DRAW)
SO_SHADOW is the common name that match the behaviour in all other engine versions
but it appears it might actually was renamed SO_SPECIAL_DRAW since V7 (shadow %1 -> special-draw %1)
According to the SCUMM tutorial https://web.archive.org/web/20170225190343/http://wilmunder.com/Arics_World/Games_files/The SCUMM Manual.pdf

I thought some more time about it; from my point of view it would be prettier (but not mandatory of course!) to keep the original names when applicable, maybe with a comment next to it, e.g. we could use SO_SPECIAL_DRAW in v7 and keep a comment next to it which says SO_SHADOW.

The reasoning behind this is that IMHO it'd be better have code labeled in a way that it's self explanatory.

This applies to v8 in particular which is almost its own thing, with its high number of features which were reworked from previous versions.

Again, this is not mandatory at all, I already like the changes if you do like them too. 😄

Needless to say, excellent work as always! Merging!