def colorize_frame(cls, field, color):
        """
        Color border of the field with specified color.
        :param field: Field handler.
        :param color: Desired color.
        :return:
        """
        color_name = color.name()
        class_name = field.__class__.__name__
        field.setStyleSheet('%s { border: 1px solid %s; border-radius: 3px; }' % (
            class_name, color_name))