Please review/report usage of standard Font and Icon roles in Plasma

[Christoph Feck]

Hi Plasma developers,

I am currently looking at the dialogs in Systemsettings to configure Fonts and 
Icons.

In the Fonts dialog, there are entries "Desktop" and "Taskbar".
In the Icons dialog (Enhanced tab), there are entries "Desktop" and "Panel".

I would like to know if Plasma:
- still "uses" (respects) those choices and intends to do so in the future,
- does not respect those choices,
- already has or intends to provide its own configuration.

If they are no longer needed, I would like to remove them from the dialogs.

Thanks,
Christoph Feck (kdepepo)