I say It shouldn't be this difficult to color match the parts.
And your expertise comes from?
Having been involved with lots of color matching, please note:
They are trying/matching two different types of material.
One is plastic and even within different plastic types there are color variations and new pigments need to be developed.
Different pigments reflect light differently, hence adjustments are needed.
Also, don't they say : Once you try black, you don't go back
So, the glass will be coated with a paint of some kind (I assume) whereas the plastic for the home button is molded , with white pigments mixed into it.
(usually titanium)
When one matches colors there is a point at which the person making the decision gets tired and wants to be done and approves things as "close enough"
Compliments to Apple for NOT doing this.
It shows dedication to perfection!
Wouldn't buy a white anything it gets dirty and scratched from daily use,
but to each her/his own.
Also, don't they say:
Once you try black, you don't go back
