I just feel like the colour doesn’t explain anything, and forces us to ask questions without answers.
If the monochromatic Exegol is the problem, I think changing up the colours of the planet, temple, or even just the mist/fog would better break up the blue than to introduce new powers/looks for established powers.
What questions does it force you to ask? It’s literally simple.
Red force lightning = more evil power.
Simple as it can get. Not even a “new power”.
Exactly, it’s just a cool visual change. Star Wars fans wouldn’t question it since they’d understand it’s a fan-edit (appreciate it as a nod to TCW if that’s how they interpret it) and a general audience would just think “huh, cool”.