Initialize the color picker widget. The color picker will not be shown until
open() is called.
If the backend doesn’t support setting a title to the native color picker
widget, the title parameter might be ignored.
If the initialColor parameter does not follow the format specified on top of
this file, the behavior will be unspecified. The initialColor could be the
one used by the underlying backend or an arbitrary one. The backend could
also assert.
| parent | nsIDOMWindow parent. This dialog will be dependent on this parent. parent must be non-null. |
| title | The title for the color picker widget. |
| initialColor | The color to show when the widget is opened. The parameter has to follow the format specified on top of this file. |
Opens the color dialog asynchrounously.
The results are provided via the callback object.