Working on my Middle East map, I was trying to figure out how to best show which territories were capital bonuses, but I also wanted to keep them as part of the regional/district bonus they belong to. I don't like the idea of giving a capital strategic worth if you don't control the region it belongs to. In other words, I didn't want this(teal territory):

I don't have the bonus boxes for capitals located in/next to the territories they belong to for a couple reasons. First, it was too cluttered in some places, especially Egypt. Second, I wanted people to be able to see where all the similar bonuses were more easily, so they are listed in the top-right corner of the map.
I thought of using a star, but being forced to use rounded joints ruins it a little bit for me:

Seems to be better with a separate fill color though:

Maybe a double-width border:

I'm thinking two-toned star, anybody else have any thoughts?