I'm trying to give some rounded corners to my bottom navbar. For that, I have to make the background of its container transparent but I don't know how.

This is what I did int the `Scaffold`: 

```java
bottomNavigationBar: ClipRRect(
        borderRadius: BorderRadius.only(topLeft: Radius.circular(30.0), topRight: Radius.circular(30.0), ),
        child:BottomNavigationBar(
          //elevation: 0.0,
          type: BottomNavigationBarType.fixed,
          backgroundColor: Colors.white10,

```

and the result : 

[![enter image description here](https://i.stack.imgur.com/YqK9F.png)](https://i.stack.imgur.com/YqK9F.png)

There is still by default a white background. I tried to wrap my `ClipRRect` in a container with a transparent background but it did not work.

Any idea ?