Better Label Alias description

Bugs fixes

src/MapThemerBase.php

@@ -70,6 +70,23 @@ abstract class MapThemerBase extends PluginBase implements MapThemerInterface, C
     ];
   }
 
+  /**
+   * Generate Label Alias Help Message.
+   *
+   * @return array
+   *   The label alias help render array..
+   */
+  public function getLabelAliasHelp() {
+    return [
+      '#type' => 'html_tag',
+      '#tag' => 'div',
+      '#value' => $this->t('If not empty, this will be used in the legend as label alias.'),
+      '#attributes' => [
+        'style' => ['style' => 'font-size:0.8em; color: gray; text-transform: lowercase; font-weight: normal'],
+      ],
+    ];
+  }
+
   /**
    * Define if to return the default Legend Icon.
    *

src/Plugin/GeofieldMapThemer/EntityTypeThemer.php

@@ -134,7 +134,9 @@ class EntityTypeThemer extends MapThemerBase {
       '#header' => [
         $this->t('@entity type Type/Bundle', ['@entity type' => $entity_type]),
         $this->t('Weight'),
-        $this->t('Label Alias'),
+        Markup::create($this->t('Label Alias @description', [
+          '@description' => $this->renderer->renderPlain($this->getLabelAliasHelp()),
+        ])),
         Markup::create($this->t('Marker Icon @file_upload_help', [
           '@file_upload_help' => $this->renderer->renderPlain($this->markerIcon->getFileUploadHelp()),
         ])),
@@ -171,7 +173,6 @@ class EntityTypeThemer extends MapThemerBase {
         'label_alias' => [
           '#type' => 'textfield',
           '#default_value' => isset($default_element[$bundle]['label_alias']) ? $default_element[$bundle]['label_alias'] : '',
-          '#description' => $this->t('If not empty, this will be used in the legend as label alias.'),
           '#size' => 20,
         ],
         'icon_file' => $this->markerIcon->getIconFileManagedElement($fid),

src/Plugin/GeofieldMapThemer/TaxonomyTermThemer.php

@@ -212,12 +212,13 @@ class TaxonomyTermThemer extends MapThemerBase {
           '#header' => [
             $this->t('Taxonomy term'),
             $this->t('Weight'),
-            $this->t('Term Alias'),
+            Markup::create($this->t('Term Alias @description', [
+              '@description' => $this->renderer->renderPlain($this->getLabelAliasHelp()),
+            ])),
             Markup::create($this->t('Marker Icon @file_upload_help', [
               '@file_upload_help' => $this->renderer->renderPlain($this->markerIcon->getFileUploadHelp()),
             ])),
             $this->t('Icon Image Style'),
-            $this->t('Notes'),
           ],
           '#tabledrag' => [[
             'action' => 'order',
@@ -256,7 +257,6 @@ class TaxonomyTermThemer extends MapThemerBase {
           'label_alias' => [
             '#type' => 'textfield',
             '#default_value' => isset($default_element['fields'][$k]['terms'][$tid]['label_alias']) ? $default_element['fields'][$k]['terms'][$tid]['label_alias'] : '',
-            '#description' => $this->t('If not empty, this will be used in the legend as label alias.'),
             '#size' => 20,
           ],
           'icon_file' => $this->markerIcon->getIconFileManagedElement($fid),