how to obtain GD icons exclusive to other games WITHOUT ICON HACK (read desc)

it's notoriously annoying that there's icons exclusive to the other gd games (ie. subzero, meltdown, world, lite, steam ver.) that are completely inaccessible to the average player unless they hack the game, but turns out there actually is a way to unlock them without hacking! step by step guide: (you need to have a geometry dash account) 1. SAVE YOUR DATA OTHERWISE IT WILL BE PERMANENTLY LOST AND THERE WILL BE NO WAY TO RECOVER IT!!!! 2. once you have secured your data, unlink your account from the app. this will delete all your data, but as long as you saved it you will keep everything. 3. open up the app you would like to obtain your icons from 4. log into your account in the app 5. load your account data, it does not matter if you already have the icons before you do this as it will simply add them to the ones you already have 6. save the data in order to permanently make the icons part of your account 7. unlink your account once again 8. log back into the original GD congratulations!!! you can now get ever closer to having every icon in the game while being upset that there's like 85 that are still completely unobtainable until 2.21 comes out!