Vertices only hex map and arc shading

I am new to the forum. I did a search but found nothing.

Can anyone point me to a map with hex corners only? I looked at the source code and found nothing supporting it. I suppose I would have to use a png file to represent it.

Also is there a way to shade an arc as opposed to shading a Circle defined by a radius. I have looked at the shading documents but have not found it.