Here I'm going through three different ways to modify effects:
* Changing where an Effect animates (target panel vs. source unit, for example)
* Changing Effects that animate on a single target to animate on multiple targets
* Changing Effect colors/palette at runtime
There wasn't a whole lot of previous documentation about this, so I had to do quite a bit of investigation, and I'm documenting what I found for posterity. Choto's notes on effect data locations and routines (from years before!) were really helpful.