Icomoon.svg file size to big

Hi Team,

it would be nice to add the functionality that you can define the icons you really need for the theme…at the moment the icomoon.svg is way to large with 1mb in file size! The only way I see at the moment is to use icomoons app and copy the generated icomoon fonts to the theme. But this is bad if the theme gets updates I will lose my generated fonts!

Regards,
Chris