I was referencing "dark mode" only in the context of it being optional, not the game just being dark mode without any light mode option for contrast. When using the term more broadly than it's usually used, though, yes, Pong beat you by about 50 years. Even with games that default to a lighter look and add a dark mode option though, you weren't the first. And even going unreasonably specific to the way you've done it, the order of release of minimalist artistic games which run a white or very light background as standard, and have a dark mode option to get rid of the glare, Dots did it in 2013, and you didn't do it until 2020. The only other game I know of which did this is Fights in Tight Spaces, which didn't add dark mode until 2021. The reason I found out about Dots is because when requesting a dark mode for FiTS, several players mentioned it as an example of a game with a similar aesthetic which implemented a dark mode option.
There really aren't many games within the bounds of your specific art style which have a dark mode. But you weren't the first even when being really specific to how your game's implementation works. Unless you want to claim your Steam update was before Dots did it in 2013 and you took over 7 years to get around to mentioning it here... but we both know that's not what happened.
Credit for being one of the VERY rare games to do it, but claiming "first" is pretty big, and you've got to make sure you're RIGHT when you're doing that. In this case, you aren't. It's not even reasonable to narrow down your definition of "dark mode" far enough for you to justify calling yourself the second (and even that would require assuming there aren't more games which beat you to it that just aren't as easy to find).
Viewing post in First game in the world with Dark Mode! comments
Thanks for the info. Yes, I understand you (you talking about context/referencing ) and you're right, but the point here is that it's part of the game not description (and in THE IMPOSSIBLE DLC and THE IMPOSSIBLE 2 this will be explain more). THE IMPOSSIBLE is not a just a puzzle game (https://steamcommunity.com/id/patch_impossible_inc ). So, if you only focus on the description/context, you're right 100%, but if you play the game and talk with PATCH you'll understand it, then you change your mind, but for example: if the moderators (Itch) want, I'll delete the post or change it, but that's part of the game.
This argument makes literally zero sense. The fact is that your claim is objectively false. I wishlisted the game on Epic because it looks interesting, then found the itch.io page when looking for more information. Arguing "but it's part of the game" doesn't negate that you're listing this as a feature, not an in-game story element. You're telling people that this is the first game with dark mode, and that isn't true. It is very definitely and without any ambiguity, a false statement you're using to market the game. And in most parts of the world, false advertising is illegal, so you should really consider stopping doing that just from the fact that you've admitted to knowing it's false, rather than waiting for the platform you're selling the game on to call you out on it.