[Q] Adjustment of Standart Dock Buttons / Pulldown Menu topic

Hi everybody and thanks for a lot of awesome work on Themer.
Two things really bother me so far:

1.
A lot of themes do have standard buttons in the dock: Phone, Messages, Apps, Email and Camera.
Let's say, I want to have my Browser there instead of the email button. Is there any way to get a standart
icon for (in this example but not limited to) the browser, which integrates nicely into the theme or must the
designer provide this button? On the same note, I feel it's difficult to find these standart icons in the first place,
where are they saved?

2.
Pulldown menu. I managed to switch off my standard pulldown menu (in my case CM 11). But the Themer
Pulldown menu lacks a lot of features like switching my mobile data on/off, toggling my position or vibrate mode.
Is there any way to extend or modify the possibilities in the pulldown menu?

Thanks from my side.