I'm not a lawyer, but I would consider revisiting your icon[0]. It looks identical to Patreon's[1] with a period/full-stop. On a technical note, this looks pretty cool and may have helped me hold off on ditching my mac products if I knew about it sooner!
This is also the first thing I noticed and regardless of it not being related to the software itself it is a red flag. Ironically the favicon on the page is sufficiently different and wouldn't be mistaken for Patreon's logo, at least in my opinion.
A red flag for dishonesty, if you want a broader answer — it is entirely possible that the author hasn't indeed seen Patreon before, but as it is, Patreon is a very widely known company and it looks like a rip-off, even if it isn't. Much in the same vain you could make an apple with a bite your logo, but it would look like you're just a copycat.
I've supported multiple Patreon campaigns, and i didn't recognise this logo. It's not featured prominently on their homepage and mailings. Calling something that looks like a simple oversight 'a red flag for dishonesty' sounds a bit unfair to me.
The logos are completely different (curvature, colors, extra circle). I don't think there's anything to worry about here. Patreon doesn't have a monopoly on logos that look vaguely like a P.
