bug#51715: defface forms not having dynamic value

[irenezerafa]

I am getting into quite messy code because my macro creates

defface forms.  Those do not have a dynamic value, but use the

value they get at the time they are evaluated. So using something

like a variable purple-intense does not help, because its value

would be a reference to one value, not a function that returns a

value (and having a function as a value would not be possible for

a face).

Because the purpose of faces is to be configurable by the user,

could there be some improvements to easily tackle such problems?