Can I haz non-logo icons from the site(s)?

I'm designing an app and my plan, assuming it pleases the court, is to use some of the icons/look-and-feel from the site.

For example:

• The green and red boxes with rep (this is really more look-and-feel)
• The Favorite star, The "Accepted" green checkmark (right off the site)
• Badge dots (ellipses with the exact color)

I assume these types of things are not actually copyrighted but want to be sure I'm not angering the StackExchange Pantheon :)

Can I haz non-logo icons from the site(s)?

I'm designing an app and my plan, assuming it pleases the court, is to use some of the icons/look-and-feel from the site.

For example:

• The green and red boxes with rep (this is really more look-and-feel)
• The Favorite star, The "Accepted" green checkmark (right off the site)
• Badge dots (ellipses with the exact color)

I assume these types of things are not actually copyrighted but want to be sure I'm not angering the Stack Exchange Pantheon :)