Default Miui icon question

I just started using miui launcher since miui hasn't been ported to Verizon's s4 yet. I have a few questions, how do I find the icon names for stock icons that come with phone ex. Notes, music player and camera. I know for apps of the market its everything after com. And my other question is why can't I use my stock accu weather widget with this launcher? It shows up in the widget selection list but I'm unable to add it to a home screen.

Sent from my SCH-I545 using Tapatalk