color property
final
      The color to use when drawing the icon.
Defaults to the nearest IconTheme's IconThemeData.color.
The color (whether specified explicitly here or obtained from the IconTheme) will be further adjusted by the nearest IconTheme's IconThemeData.opacity.
Typically, a Material Design color will be used, as follows:
  
    link
  
  Icon(
  Icons.widgets,
  color: Colors.blue.shade400,
)
  Implementation
final Color? color;