From Veilhounds @ smooshkin.com

Crown Flame

Every veilhound has a flame that floats between their horns.
They can flicker lazily, or more aggressively; even igniting dramatically when using magic, excited or angry.

Starfire is bright and vivid, giving off light.

Ravenfire is dark, seeming to absorb light.

Arcfire is flame that behaves much like electricity.

Torrentfire is flame that behaves much like water.