protected function getGhost()
    {
	    // A value is set for this checkbox, use it
	    if ( null !== $this->ghostCheckboxValue ) {
		    return $this->ghostCheckboxValue;
	    }

	    // No value is set, and it is not forced to null, so use default ghost (if any)
	    if ( ! $this->avoidGhost ) {
		    return config( 'blade-materialize.checkbox_ghost' );
	    }

	    // No value is set, user didn't force ghost
	    return null;
    }