About the style name prefix in the ToImportedIconProvider icon names

[plantec]

a mail from @Ducasse in the bloc mailing list:
could we avoid to have round_spatialaudio
I would prefer to get less _ as possible in method selector.

my answer:
Regarding round_spatialaudio, it is from the set of svg icons source.
Is is generated code and I prefer keep it like that for the icons.
It keeps track of the name of the style directory where the icon was stored.

after thinking more:
ToImportedIconProvider subclasses are normally generated classes from a source file.
Regarding SVG, the icon directory with all icon files is in a style directory.
Style/Icons

For now, icon files are imported as a class method of a ToImportedIconProvider.
The name of the method reflects the directory organization with the style prefix and the the original file name separated with a underscore bar ''.
While the use of '' is possible here, it denotes a modeling issue.
Since each style has it own dedicated classe (ToIconRoundStyle for the round style), why not add the generated icon methods in a style subclass ?
This means that we would have a ToMaterialDesignIconRoundStyle.

What do you think @Ducasse @tesonep @tinchodias

[Ducasse]

Having a dedicated class is better to my eye because it favors simple modularity.