Thank you for reporting it.
I guess you have to enclose the font name like
"MigMix 1M" since it has a whitespace.
Hope that helps!
Now editor text is rendered as expected with
"MigMix 1M". Thank you very much!
Anyway, my default settings of Font Family is as follows:
Liberation Mono also contains a whitespace in its name and it is not enclosed by quotation marks. Is it OK?
Aaw thanks for pointing it out. Yeah it should be quoted as well! I will fix it.