I think you are quibbling about things that 99.9% of people quite frankly don't care about. A substantial group will leave everything default and for most of the rest the fact that you can change the colorscheme/style/background is sufficient.

It's somewhat like a wine aficionado discussing the 7 delicate flavors that or an audiophile considering the virtue of using a slightly more expensive cable.

So when I ask how it makes a difference I wasn't looking for a trivial redefinition of the word I was asking rather what difference it makes. Do you believe more people will use it if its pretty? Do you believe more people will enjoy using it if its pretty? To what degree and why?

99.9% of people are perfectly fine with doors with a pull handle and a sign saying "PUSH" on them.

Software is full of pull handles with push on them but none of the described examples seem at all similar.