I have an Alienware laptop which has lots of controllable light-up areas of the keyboard and case.
I just discovered to my delight that LOTRO has support to make use of this to indicate when your character is in combat.
When you load into the game however it shuts all the lights off, something that some see as a bug in the implementation.
It would be better to have the selected colour scheme active when not in combat. I might play a bit with it on just to experience the novelty, though I’m not much of a “gamer hardware” fanatic (I don’t use a ‘proper’ gamer mouse for my general gaming nor a controller to play action MMOs like Tera.) Still it’s an interesting feature that I’ve not seen supported by any MMOs that I’ve played before this.