Read the part of the AI disclosure question again, where it says "even if you hand-edited it".
https://itch.io/t/4309690/generative-ai-disclosure-tagging has some discussion about it, including this advice https://itch.io/post/11423702 It’s just a tag, use your best judgment. If the output of Gen AI is something you put into your project, then tag it.
And to clarify, it is not a tag. But it can be filtered by the tag mechanic. You should not advertise your game as being ai free or the assets to be 100% gen ai free.
Think about the people who would use those ai tags. Is it important to appear in the result of no-ai or imporant to not appear there? My guess is, that people that use the no-ai tag for browsing games, would consider your game to contain gen ai. While the people browsing for ai-generated might not. Hilarious.
The ai tools in Photoshop and similar are problematic, because they are not always obvious as gen AI. It's not just a color filter, but it literally generates things. And it does not generate a complete image. Also the case of "gen ai edited" is not specifically covered in the AI disclosure, only the other way round.
I prefer the way Steam displays the info. They do so in text form. Where it would read that you created minor deatils with gen ai and polished them by hand. Itch currently displays no info at all. All the ai tags you see on game pages are manually added and not the result of the ai disclosure question.