Is this possible?

I have noticed a difference in my clutch since I was in stop-n-go traffic on the day of the blackout last month, it seems to engage lower in the pedal travel...anyways, I just noticed that the fluid seems darker, murky almost, not too bad but noticable.

Is it possible to have burnt the fluid or something? If so, I think I know how to bleed it (it's a mcleod adjsutable setup) but how the heck would I drain it and flush it? Ideally without removing it from the car...
Thanks!!