Fixed missing <script> tag and added overlays to settingsTab.

src/public/mix-manifest.json

@@ -1,6 +1,6 @@
 {
     "/assets/scripts/main.js": "/assets/scripts/main.js?id=2841cb161cd2f12e8413f919d09168b3",
     "/assets/scripts/volumes.js": "/assets/scripts/volumes.js?id=68b2595cd29676ad8496e5f5a04a32f5",
-    "/assets/scripts/annotations.js": "/assets/scripts/annotations.js?id=121063d6a28ea875139802747178f18e",
+    "/assets/scripts/annotations.js": "/assets/scripts/annotations.js?id=d89c3ee524b17cf424cbff0087bde1ab",
     "/assets/styles/main.css": "/assets/styles/main.css?id=bf09d95dc04208c3ee738dafbf8e123c"
 }

src/resources/assets/js/annotations/components/settingsTabPlugin.vue

@@ -14,6 +14,8 @@ export default {
     data() {
         return {
             opacityValue: '1',
+            volumeId: null,
+            overlays: null,
         }
     },
     computed: {
@@ -38,9 +40,17 @@ export default {
     },
     created() {
         this.volumeId = biigle.$require('annotations.volumeId');
+        this.overlays = biigle.$require('annotations.overlays');
 
-        if (this.settings.has('contextLayerOpacity')) {
-            this.opacityValue = this.settings.get('contextLayerOpacity');
+        // check if there are context-overlays
+        if(this.overlays.length !== 0) {
+            // check if an opacity preference is available in settings and change it in case
+            if (this.settings.has('contextLayerOpacity')) {
+                this.opacityValue = this.settings.get('contextLayerOpacity');
+            }
+        } else {
+            // if no context-overlays available
         }
     }
-};
+};
+</script>

src/resources/views/annotationsSettingsTab.blade.php

@@ -1,5 +1,5 @@
 <component :is="plugins.contextLayer" :settings="settings" inline-template>
-    <div class="sidebar-tab__section">
+    <div v-if="overlays.length !== 0" class="sidebar-tab__section">
         <h5 title="Opacity of the context layer">Context Layer (<span v-if="shown" v-text="opacity"></span><span v-else>hidden</span>)</h5>
         <div class="form-group">
             <input type="range" min="0" max="1" step="0.1" v-model="opacityValue">