How to set specific color when using pygal.maps.world?

Hi,

I wonder how to set a specific color for certain category when using drawing a map of different countries?

For example, Asian to red and Europe to green. Thanks!

Start by reading the pygal.maps.world documentation and examples to find how country categories and colors are configured. Confirm whether the existing map API supports assigning distinct colors to Asia and Europe, and document or implement the smallest supported path so the example renders Asia in red and Europe in green.

Written by the indexing model from the issue text.