Participation::get_meta_fields()

	public function get_meta_fields() {
		$meta_fields = $this->_get_meta_fields();

		unset( $meta_fields['enabled'] );

		$meta_fields['display_mode'] = array(
			'type'    => 'select',
			'label'   => __( 'Display Mode', 'torro-forms' ),
			'choices' => array(
				'line'   => __( 'Line Chart', 'torro-forms' ),
				'spline' => __( 'Spline Chart', 'torro-forms' ),
				'step'   => __( 'Step Chart', 'torro-forms' ),
				'bar'    => __( 'Bar Chart', 'torro-forms' ),
			),
			'default' => 'line',
		);

		$meta_fields['data_point_labels'] = array(
			'type'        => 'select',
			'label'       => _x( 'Data Point Labels', 'evaluator', 'torro-forms' ),
			'description' => __( 'Specify whether a label should be shown with each data point and which content it should display.', 'torro-forms' ),
			'choices'     => array(
				'none'       => _x( 'None', 'data point labels', 'torro-forms' ),
				'value'      => _x( 'Values', 'data point labels', 'torro-forms' ),
				'percentage' => _x( 'Percentages', 'data point labels', 'torro-forms' ),
			),
			'default'     => 'none',
		);

		return $meta_fields;
	}