It doesn’t really matter if the user “likes” it because it’s pretty.
I prioritize apps that have the option. If companies want me to choose their app over another, they'll offer it.
I have no problem identifying the app I want to use. My apps are alphabetized. Easy peasy.
The dynamic theming is a bit of a branding nightmare.
Probably one of the reasons I like it. Big red company icon next to the big black company icon, next to the big pink company icon. Nah, I'll take the uniform design, please.
I'm playing this fantasy video game and I'm on the login screen. There's a magical character levitating a sphere around her body with her hands. This music is timed nearly perfectly to her movement.
Synchronicity is a great thing.