The game should come with its own game icon instead of a default Godot one imo. Something like this: https://imgur.com/G2rBhrB
As a matter of fact, it used to! It was the Heart item icon from the game’s inventory system. It apparently broke with a recent update, for some reason. Hell, it was much more elegant than the GOG style icon you’re proposing. Looked pretty good next to Vomitoreum and Hedon.
Hopefully Miz takes a peek at the comments and notices! This shouldn’t be too hard a fix.
-Matt