Icons: SMD for pad outline mode, large via for via outline mode

Current	V1	V2	Function
			Pad Outline Mode Via Outline Mode Track Outline Mode

I always confuse the upper two icons, I feel this is more intuitive with only one of the two showing a plated through hole.

The "add via" button also shows no attached traces - with V2 I only have to have one mental image for a "via" icon. In the current icon, the via itself is quite small and after splitting it in half, there is just a lot going on to recognize it as a via on first glance.