Flutter BoxDecoration’s background color overrides the Container's background color, why?

I have a Flutter Container widget and I defined a color for it (pink), but for some reason, the color in BoxDecoration overrides it (green). Why?

new Container(
  color: Colors.pink,
  decoration: new BoxDecoration(
    borderRadius: new BorderRadius.circular(16.0),
    color: Colors.green,
  ),
);

Container’s color is shorthand for BoxDecoration’s color, so BoxDecoration's color in the Container's decoration property overrides its Container's color.

Problem:

You can't use color and decoration at the same time. From docs:

>The color and decoration arguments cannot both be supplied, since it would potentially result in the decoration drawing over the background color. To supply a decoration with a color, use decoration: BoxDecoration(color: color).

---

Solutions:

• Use only color:

  Container(
    color: Colors.red
  )
  

• Use only decoration and provide color here:

  Container(
    decoration: BoxDecoration(color: Colors.red)
  )
  

The color and decoration arguments cannot both be supplied, since it would potentially result in the decoration drawing over the background color. To supply a decoration with color, you can use the below code.

decoration: BoxDecoration(color: Colors.red).

Flutter team says that color property in BoxDecoration() is quite frequently used in applying background color to Container widget. As such they have put a separate shorthand for color property in Container widget. So, when we use both color property and BoxDecoration() color property in same Container widget, an assertion will be thrown as follows:

Cannot provide both a color and a decoration
The color argument is just a shorthand for "decoration: new BoxDecoration(color: color)".