In my opinion I think it would be better to keep Rey’s lightning ‘standard’ blue.
I think expanding the visual language of these movies is a tough sell at this point?
I understand the reasoning behind wanting to distance Rey from Palpatine but I think changing the colour of force generated lightning is just unnecessary?
Within canon (the movies) ‘blue’ lightning has been pretty firmly established as a dark side power.
I’ve never once gone down the rabbit hole and wondered if it’s a Palpatine (and his minions/trainee) based trait exclusively, I always just took it to be a power sourced from the dark side of the force.
In Rey’s case, I never made the direct association that when she accidentally manifested the power that it was due to her biological lineage?
I just assumed that she was so caught up in anger and desperation that her emotional instability, (alongside her powerful but still unharnessed force sensitivity) in that moment, she over pushed herself and she accidentally leaned into the power of the dark side and the lightning manifested itself.
She wasn’t serene or at peace. She was emotionally compromised and it got the better of her.
The blue colour will never require any further explanation than what is already visually depicted across the movies. We’ve seen two bad guys use it after all.
But yellow? I am immediately asking why it would be yellow? What does it mean?
Is there light and dark side lightning?
Do the users from either side employ it differently?
In this case/instance (blowing up a transport) it’s still just as deadly/destructive. It’s not like it manifested and good came of it?
If they had used yellow lightning to give a visual cue for the force healing (like a force defibrillator 😃), there would be some logic to visually depict the differences.
One drains life force, the other gives it. But to use it in this context opens up more questions than it solves?
Blue = Rey used the dark side power to gain the upper hand on Kylo.
(Perhaps accidentally - but none the less she gave in to her anger and it got Chewie ‘killed’)
Now she fears her power and what may become of her at a point in the movie when she is most vulnerable and emotionally unstable and she has the evidence to support just how destructive she could become.
More importantly the lesson she eventually takes from this is just how easy it is to fall.
After stabbing Kylo she acknowledges that she’s too powerful, but too emotionally weak to handle that power…which makes her a liability to her friends and so she takes herself out of play by going into exile.
There she gets a pep talk from her master and comes back with a renewed sense of purpose and is able to keep her head during the confrontation with Palpatine…in so doing and without resorting to tapping into the dark side, she obtains the strength of all the Jedi that preceded her.
True power. Earned.
Yellow = What happened? This is new? What is this? What does it mean?
Oh. Nothing it’s just normal force lightning because the plot won’t revisit this again.
I suppose you could still apply all of the logic above, but only with an additional (and wholly unnecessary) ‘why?’
But that ‘Why’ can only lead to a dead end, because it’s a piece of visual narrative that’s been added in but will never be explained?
To me it’s totally overthinking something that doesn’t need to be?
‘Just because we can, doesn’t mean we should’?