If you chose a Darker path for your character you have visible features to show this, what i think would be a good idea is something like this for a Light-side alignment. I understand that the game isnt Fable (so no halo's or butterfly's fluttering around us), its Star Wars and unfortunately Star Wars doesn't allow for this. Soooo...
I have a few idea on how you could show it while trying to keep it as Star Wars as possible:
- Light and Dark-side Armor. This I think would probably double Bio's workload but I'm putting it here because its still a valid idea. (The Tier Set's, Battlemaster ect.)
- Colours. I understand that your bringing in the function to change the colour of your armor. What if you made it so certain colours where dependant on your alignment, at the time of use?
- This isn't really Star Wars but you seem to have it in there anyway, add white or black glow to the character (10,000 +/- ofc). You could literally see the force radiate off them
This is all I have for ideas in the short time that iv actually thought about it, if anyone else has ideas please share - if its a big thread I assume there's a bigger chance of it being seen!