1. Timeout should be removed on destroy (line 61, 67, 567, 623, 740 `extension.js`). [EGO Review Guidelines: Timeout](https://gjs.guide/extensions/review-guidelines/review-guidelines.html#remove-main-loop-sources) 2. Please use `this.openPreferences()` from the entry point instead of spawn command (line 752 `extension.js`): [Extensions Guide: Extension](https://gjs.guide/extensions/topics/extension.html#methods-2) 3. Please add GitHub or GitLab url to the `metadata.json`: [EGO Review Guidelines: url](https://gjs.guide/extensions/review-guidelines/review-guidelines.html#metadata-json-must-be-well-formed) 4. Please don't store any instance of objects in a property in the default class you are exporting in `prefs.js`. that won't allow the garbage collector to do its job after window close: [EGO Review Guidelines: Destroy](https://gjs.guide/extensions/review-guidelines/review-guidelines.html#destroy-all-objects) If you don't want to move them to another class or make it local to `fillPreferencesWindow()` function, you can clean up on: ```js window.connect('close-request', () => { // clean up here }); ``` If you need any help with your extension you can ask us on: - [GNOME Extensions Matrix Channel](https://matrix.to/#/#extensions:gnome.org) - IRC Bridge: irc://irc.gimpnet.org/shell-extensions