What do the PDE icons in Eclipse mean?

Question

Following the question "What do the icons in Eclipse mean?" that has an excellent answer

I hope to find what all the icons and icon decorations of the "Plug-ins" and "Plug-ins Dependencies" views of the PDE

Answer 1

I can fill in most of those:

Main Icons

: Plugin

: Fragment

Overlays

: Re-exported by parent plugin

: Optional import

: Exists in the target platform (not the workspace)