// the graphic variable in an Entity is of the Graphic class, that all graphics extend.
// however, it lacks much of the functionality that other graphic classes have. So, you
// must create a variable and access it through that. For example:

public var sprite:Image = new Image(GAMEDROP);

public function MyEntity()
{
      graphic = sprite;
      sprite.color = 0xffffff;
}

// now access your graphic through the sprite variable, which IS an image.