Just noticed it seems to be some sort of tamagotchi clone from what I can see. the yellow/white meter could be growth and the icon to the right an egg. this (unrelated) app uses the same 'notebook' style of backdrop.
The game is candy crush so I assume it refers to AdTrack.king which is strange because googling that library shows that people knew it was malicious even while it wasn't flagged as such by mobile AV. http://malwarefixes.com/remove-adtrack-king-com-redirect/
"I'm curious as to why FireEye chose not to disclose the library."
For the same reason that most responsible security researchers don't disclose zero-day threats: to prevent people from exploiting them before they can be fixed. In this case, they did notify Google, which can pull the compromised apps out of their app store and notify the developers who've used this library that they need to rewrite their apps.
Covering their own asses so the framework dev doesn't come after them is the only reason I could see.
The pixelization just reminds me of 'dodgy plumbers' on 'current affairs' shows or somesuch. I'm sure someone will recognize the pictured app eventually.