I am presently altering my theme and that i need every individual code of every widget.

For instance I want the rss widget, or groups widget or comment widget, etc.

I would like individuals widget integrated during my footer.

How can i begin to see the code? I've no clue where to start look...

I'd recommend creating multiple sidebar regions inside your footer. You may make as much as you want, so simply make one for every widget you want to have within the footer.

By doing this, you take advantage of updates towards the core icons when WordPress tweaks them.