Startup.xml does not run after skin change

I've been using startup.xml to initially set up some window properties for my skin but I just noticed that startup.xml only runs when kodi first starts up.... obvious really by the name

So my question is how do I handle initially setting up my window properties when a user changes from another skin to mine?

Edit:- Ok found the answer here https://forum.kodi.tv/showthread.php?tid=320545