Fix issue with expose color changer

Closes #3449166

src/Element/ChartDataCollectorTable.php

@@ -76,6 +76,11 @@ class ChartDataCollectorTable extends FormElement {
     $required = !empty($element['#required']);
     $user_input = $form_state->getUserInput();
 
+    $charts_default_settings = \Drupal::configFactory()
+      ->get('charts.settings')
+      ->get('charts_default_settings');
+    $color_changer = $charts_default_settings['display']['color_changer'];
+
     $element_state = self::getElementState($parents, $form_state);
     // Getting columns and rows count.
     if (empty($element_state['data_collector_table']) || empty($element_state['table_categories_identifier'])) {
@@ -193,7 +198,7 @@ class ChartDataCollectorTable extends FormElement {
           ],
         ];
 
-        if (!$is_category_cell && ($add_color_first_row || (!$is_first_column && $j === $first_col_key))) {
+        if ($color_changer && !$is_category_cell && ($add_color_first_row || (!$is_first_column && $j === $first_col_key))) {
           if (empty($column['color'])) {
             $color_index = $is_first_column ? $j : $i;
             $column['color'] = $element['#default_colors'][$color_index - 1] ?? self::randomColor();