Hello, I know that ya'll been busy with your games, but just want to ask, (Noob Question) How and Where do you use your icons?
What icon? game icon or iconset for game? If you referring to iconsets game like potion, attack symbols or poison icons, check in your project folders. Since you use MV, check in folder project>img>system then you found the iconset image. In database, items, weapons, etc you can change icon for every items,skill, etc. Is this the answer you looking for?
I actually meant certain events where you use said icons, since lots of people seems to want to use them. I've been developing two games now, but I somehow avoided using them. So, I'm just curious.
I think you need to tell us what you mean by "icons", because the icons in the RPG Makers cannot be used by events at all.