That original pic is of a very old version of Fritzing, and the darker greenish tracks “A” are indicating it’s connected to the IC. Not top/bottom. AFAIK all stripnoards are single-sided on the bottom only, so no need to show tracks on the top.
You can make a stripboard in PCB, but it is a bit difficult. You set grid to 0.1", and use vias and linking traces. You can do small sections and duplicate them, but it is a bit tricky.