I am astonished at the level of animosity a simple color has created.
To the development team at Adobe - I will say that it has been statistically shown that a dissatisfied person is more than 10 time more likely to express that disappointment than a person who is pleased or indifferent is to voice their opinion, and that generally, for every 1 person who complains there potentially dozens of perfectly satisfied people who never make their presence known. The bottom line is that some people are never satisfied, and / or possess an extreme aversion to change. Threatening to dump an essential suite of software over something so trivial is ludicrous beyond words.
I have been using this release extensively since it was issued last week, and have had 0 headaches or difficulties in using the program. In fact, I find the overall cooler temperature of the grays and blues to be rather soothing. Clearly your UI designers and the majority of the QA and other designers within your walls who have tested this feel similarly.
All of this to say, I know that in your line of work, ******** and moaning is about all you ever hear, and when someone has worked hard at something, and they are proud of the results, it can be disheartening and frustrating to face such negativity. So, I just wanted to step up and offer you a little of the opposite. And, as it has been previously suggested, probably the best way to fix this issue for the less-nimble of your user base is probably to offer user-selecteable color options, so people can up with their own layouts that 'work well for them', as no color you choose at this point is going to make everyone happy. So, instead of wasting time chasing the dragon, just turn over the keys.
Overall, good job guys, and don't let the haters bring you down.