Bright in some senses of the word: Anakin burns, that much is certain. But in a way, it feels like pure Force concentrated, and finding Light or Dark in it is hard to sense or tell.

Frankly, Anakin has been enough of both in his time--and besides which has finally found his own balance. It has an effect.

He felt that interest, but as long as it's not unfriendly, he will welcome the company. "Alternate lightsaber build," he answers. "The original design was not the most elegant, but there are some interesting concepts and a Jedi once made quite interesting use of it."

Kanan used it better than Ezra did, in that regard.