It had me thinking. And I'm sorry to take the discussion on a sidetrack from the use of emojis.
In my Blue Life comic, I use in-app clipart from Keynote (the Apple PowerPoint).
I somehow just saw this as free to use.
But did some digging. And I think I'm fucked. I must now remake the entire series if I read this correctly.
The following is extracted from the KEYNOTE SOFTWARE LICENSE AGREEMENT: