Disable external Google fonts?

Hi ho,

as far as I can tell the plugin always imports Google fonts, e.g
@import url(https://fonts.googleapis.com/css?family=Open+Sans:300|Open+Sans:400|Open+Sans:700);

From a privacy perspective, I would much rather get rid of those and provide fonts locally.
Even when I do not use any of those fonts at all and set all possible fonts-values of the plugin to “inherit”, the fonts still get imported.

Is there any way in the configuration to switch this off?
If not, are the any plans of allowing for that in future versions?

Best regards.