Please ensure you have added CreatureSurvive's Repo before installing Modernize13, as there is a dependency that requires it.
Modernize13 supports all devices running iOS 13. If you are experiencing any problems with Modernize13 not working on your device, please contact me on Twitter.
Modernize13 is a tweak that aims to allow users to make their devices unique by allowing them to customize the interface we've had for so many years. It's made for people who are tired of waiting for Apple. The people who are ready to take matters into their own hands.