Cinnamon font won't change

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I have been unable to change the default font size or type.
I examined the 'cinnamon.css' in the theme. I found
stage { font-family: Futura Bk bt, sans, Sans-Serif; font-size: 9pt; color: #464853; }
This font is not in most distro's. This also sets the font size. This prevents the font selector in cinnamon from changing the font at all. I recommend commenting this out.
like this:-
stage { /*font-family: Futura Bk bt, sans, Sans-Serif; font-size: 9pt; color: #464853;*/ }
This will make it possible to use font selector again.
Please remove these lines or comment them out.
Thank you for reading.