Hey, sorry I've been off the grid for the last few month! I made the icon myself. Btw, I just released a new version, with a refined version of the app icon + alternate app icon support :)
Open sourcing is on it's way. TBH, my commits are quite messy and very unprofessional but I could open source it right now. I would just need to arrange/reorganize the files and directories, but that's manageable.
I will add it to the next build.
Just out of curiosity, you don't like the new one? I feel like the head is a little too big but any tips for improvements?