Change the look of Notifications

[lexus]

So all my notifications come in with a grey box around them but some of my friends do not have a grey box they just come in without anything and I think this looks much better.

Does anyone know how to change this?

Thanks

 

[C DM]

So all my notifications come in with a grey box around them but some of my friends do not have a grey box they just come in without anything and I think this looks much better.

Does anyone know how to change this?

Thanks

Is it that some of your fiends might be on an older version of iOS before iOS 10?