Why does Thorax have different colored magic?

[ggg-2 3,551]

I suppose the simplest answer is to make him different than the other changelings but what about be what about beyond that?

[Sunny Fox 5,935]

He isn't evil, so his magic is a different colour, I guess.

[Crypty Scribbles 2,974]

Have never noticed it.

 

By the way, we know not so much about changelings, but we know that they can change theirs appearance and can use some sort of magic. So I guess they can change colour of their magic as well. 9_9

 

[Tao 6,757]

Maybe due to not feeding on love and being leashed to the Hive Mind?  Might make sense given all the other changlings having feed on love and being all Hive like would have the same magic colors.   Throw in the artist would be looking for traits to also make Thorax stand out a bit more from the other changlings.

[ParadoxicalOutcome 44]

It is probably to make Thorax stand out, as others said. But, it wouldn't be fun to not look for in-universe answers, so I'll share my little theory on how changeling hives may work:

 

When a changeling is under the command of a changeling queen, the color of their magic changes to their queen's color to indicate whose hive they belong to to other hives (If there are any other changeling hives, that is. Chyrsalis may very well be the only one left).

 

So because Thorax ran away and is no longer under Chyrsalis, his magic isn't green! Why is it blue? Well, um... Because... Reasons.

[cmarston1 5,952]

To distinguish him from the other changelings in the show.

[MLPFanatic34 3,234]

Probably to distinguish him from the evil changelings.

[cider float 2,536]

Well since all ponies have different colored magic wouldn't be farfetched to give changelings different colored magic. And changelings don't do the same kind of magic as unicorns.

 

Thorax doesn't look much different than other changelings it could be because they have very similar genetic code.