Is it possible to change the color of the scroll bar in Acrobat Reader DC?

[#1]

(See the attached picture for details)

As the title suggests, is there a way to change the color of this scroll button to a color that contrasts the other gray background color more?

I was considering, if it was possible to make it red, green or blue.

After about an hour of searching, I gave up on finding a thread with the answer and decided to ask it here instead.

[#2]

Not from within the application itself, no. Maybe if you changed the system window colors, but I'm not even sure about that.