Colour and label size in contrib.worldmap

I have a question.

  1. How to change the label size(that shows Locust:Yes.......)?I would want that much bigger.

The function code picture is shown below.

Thank you in advance

It accepts html so try html tags to change the font size

I am sorry if this is too naive ,but could you please give the syntax of how to do that..Thank you and sorry

surely you can figure that out ? eg