Custom music font

Hello!
Is there a way I can get access to font used for music in Musescore?
I am aware that it is hardcoded to the program but is this how it is going to stay or are there plans for the future to allow a separate font to be used?
I need to customize some symbols in the font to be able to use my alternative chromatic notation in Musescore. Is the only way to use the source code where the font is separately and compile it? And if so, can someone point me to the right direction how to do that? I am using Mac OSX version.

Thanks & regards,
Jan