I usually check one by one, as I quite familiar with the icon and what kind of expansion it is. But, "filter content" like what Eld said was something you need to consider as I also don't know about the post that you mentioned about. Sorry. Have you tried searching via Google? Just type this forum and keyword that related to the topic, I.e: I know that somewhere they posting about Hex codes but I forgot, so I just type “hex codes carl and pam” and voila, there’s a thread related to the topic.
I wish that you'll find what are you looking for.