Improvements:

* Remove the spedific views option Show Legend since its now possble to select it normally

views/charts_plugin_style_chart.inc

@@ -39,13 +39,6 @@ class charts_plugin_style_chart extends views_plugin_style {
     // Get chart settings from options form.
     _charts_settings_form($form['charts'], $this->options['charts']);
 
-    $form['show_legend'] = array(
-      '#type'           => 'checkbox',
-      '#title'          => t('Show legend'),
-      '#default_value'  => $this->options['show_legend'],
-      '#description'    => t('Display legend next to the chart.'),
-    );
-
     // Views Calc related fields
     $form['aggregation_field'] = array(
       '#type'           => 'select',
@@ -143,9 +136,6 @@ class charts_plugin_style_chart extends views_plugin_style {
           if ($key == $this->options['aggregation_field']) {
             $legend_field = array_key_exists($calc, $this->view->field) ? $this->view->field[$calc] : NULL;
             $legend = !empty($legend_field->options['label']) ? $legend_field->options['label'] : NULL;
-            if ($this->options['show_legend']) {
-              $data[$calc]['#legend'] = $legend;
-            }
             $value['#label'] = strip_tags(theme_views_view_field($this->view, $this->view->field[$key], $row)); // .': '. $row->$calc;
             $value['#value'] = $row->$calc;
             $chart[$calc][] = $value;