Say something you do, you are, you're going to do, you want to do, you did, or anything else and I'll give it a thing of what it is by saying:
Red flag: bad thing 
Blank flag: intermediate thing or nothing
Green flag: good thing
Crimson flag: extremely bad thing
Turquoise flag: extremely good thing 
Gold flag: rare and unique thing
Yellow flag: common thing
Monochrome flag: are you the devil? So mean!
Rainbow flag: please be my bestie right now, you're so kind, sweet, and/or cool as I can tell