How do you figure these names out anyway? Were they blind bags or something?

Scratch that, I was looking at the wrong character.

@Ridley Wolf  
“Hair nearly of white”  
You’re looking at the wrong pony, look under the text.

Sugarcoat looks a great deal like Suri Polomare.

Are these definitely the names, then?

For Indigo Zap I’d add: “Not Lightning Dust”.