Why do my app icons look different after phone update?

[Android Central Question]

I have a Xiaomi Redmi Note 5 and I recently updated it to Android Oreo. When the update finished, several of my app icons got smaller and have white backgrounds rather than being transparent like before.

 

[Darshil123]

I have a Xiaomi Redmi Note 5 and I recently updated it to Android Oreo. When the update finished, several of my app icons got smaller and have white backgrounds rather than being transparent like before.

 

[kct1975]

View attachment 289404

That is the New Material look from Android Oreo 8.0