Some time ago the SDL AppStore team created an opensource site where they make the source code available for virtually all the apps they create for the SDL AppStore. You can find the site here, https://sdl.github.io/Sdl-Community/, along with links to the apps themselves and also the sourcecode which can be pulled by any developer so they can make their own enhancements and improvements based on a good headstart. I love this concept, but have to say I’m a little disappointed by the lack of active participation from other developers in pushing their own work back into the apps to share the improvements. At least I’m disappointed in general, but there are exceptions even if they have been carried out by the AppStore team themselves! The best exception and example of what can be achieved is around the Advanced Display Filter that can be found in Studio 2017.