new: setting of editor highlight

lib/view/page/editor.dart

@@ -57,10 +57,12 @@ class _EditorPageState extends State<EditorPage> {
     super.initState();
 
     /// Higher priority than [path]
-    _langCode = widget.langCode ?? Highlights.getCode(widget.path);
-    _controller = CodeController(
-      language: Highlights.all[_langCode],
-    );
+    if (Stores.setting.editorHighlight.fetch()) {
+      _langCode = widget.langCode ?? Highlights.getCode(widget.path);
+    }
+      _controller = CodeController(
+        language: Highlights.all[_langCode],
+      );
 
     /// TODO: This is a temporary solution to avoid the loading stuck
     Future.delayed(const Duration(milliseconds: 377)).then((value) async {

lib/view/page/setting/entry.dart

@@ -245,6 +245,7 @@ class _SettingPageState extends State<SettingPage> {
         _buildEditorFontSize(),
         _buildEditorTheme(),
         _buildEditorDarkTheme(),
+        _buildEditorHighlight(),
       ].map((e) => RoundRectCard(e)).toList(),
     );
   }
@@ -1072,4 +1073,12 @@ class _SettingPageState extends State<SettingPage> {
       },
     );
   }
+
+  Widget _buildEditorHighlight() {
+    return ListTile(
+      title: Text(l10n.highlight),
+      subtitle: Text(l10n.editorHighlightTip, style: UIs.textGrey),
+      trailing: StoreSwitch(prop: _setting.editorHighlight),
+    );
+  }
 }