Normal Mode:
It's not even that awfully bad as I thought.
I am already using an alternate theme from the BPIP extension and even custom theme is possible there.
If there's demand for such a theme (and OP likes is), I guess that maybe you should share it.
However, I would not use it. OK, Orange is Bitcoin color, but let's not exaggerate... gray-ish colors are usually better for the eyes and more people like to use them when reading more text.
Orange is the best color for your eyes, that's why BMW, Mercedes, Audi etc use Orange inside their cars.
Although it's not that much useful, since the driver looks.. outside.. you know, I'll still give it a try:
how many people buy cars with "colored" interiors vs how many buy gray/black like variations?
Shocking and making people turn to look at you (no matter it's interior or exterior) is not the same as being pleasant as background for reading.