I recently downloaded Silk, which is a program that replaces system fonts. I decided that I didn't really want it so I removed the preference-pane using AppZapper. While the pref-pane is gone. I still get the pop-up on my desktop that tells me that my demo version has run out. It usually pops up whenever I launch a program. Here is an example of what I'm talking about: Any idea on how I can go about removing whatever is causing this?