Skyline uses the Microsoft .Net feature "User settings". These settings get stored in an XML file somewhere under "AppData\Local\Apps\2.0\..." in your home directory on your Windows computer.
There is a description about how to find that file in this help page:
If you want to share your settings with someone else, you should use the Skyline menu item:
Settings > Save Current
in order to give your current settings a name, and then:
Settings > Share
in order to export the settings to an XML file that you can send to someone else.
and then they can use the menu item:
Settings > Import
in order to read in that XML file.