The app screenshot should use default elementary titlebar buttons to show how it looks without any modifications done to the theme itself. Right now, the screenshot uses Mac OS like red and green buttons for close and maximize which shouldn't be present in the screenshot.
We've rejected this app from releasing it on AppCenter. Please resolve this issue and the second one (https://github.com/fleury08/prettifier/issues/2) and release a new version.
The app screenshot should use default elementary titlebar buttons to show how it looks without any modifications done to the theme itself. Right now, the screenshot uses Mac OS like red and green buttons for close and maximize which shouldn't be present in the screenshot.