Make your device look beautiful with Blackblue
 
The theme applies:
.color of the user interface
.color contacts
.color calls
.tepped xperia
.color music app xperia
.color wtsapp
.and more

CONSIDERATIONS:
The theme has been tested on xperia devices with android oreo, but it can also be compatible with other devices of other brands with android oreo use it with your own responsibility.
questions or doubts communicate to my email.