Well done. As a colour blind person (and iOS developer) I am thrilled anytime an app doesn’t rely on colour cues alone. I’ve used Hack and Octal but I am going to give your app a try.
Putting aside the greater variety of physical traits that you describe, dogs generally are more adaptable than cats. They are estimated to have twice the number of neurons and are much more malleable whereas cats feel more hardwired into a set of cat behaviours.
I’ve assumed that this greater learning capacity and malleability is both the best part of a dog and a vulnerability that can lead them to become highly anxious and dependent animals.
I’ve had both cats and dogs, and loved them both, but my goodness they are so wildly completely different animals.
I admit to invoking the phrase “Where we’re going, we won’t need eyes to see” at least once a year when something feels like it’s going horribly wrong.
There are many motivations for shooting jpeg with film sims, from just not wanting to expend the effort editing photos to my motivation as a colour-blind person who simply cannot see colour well enough to manually adjust photos. For me, it’s incredible being able to choose a film simulation and be happy with the result even if I know that the colours I’m seeing aren’t quite the same that others will see. It’s the entire reason I bought into the FujiFilm system.