- use var instead of specific type names where applicable
- get user's home directory from Environment.SpecialFolder.UserProfile instead of reading the HOME environment variable, which isn't always set
- use object initialisers where possible
- remove redundant identifiers (e.g. "Gtk.Application.Invoke" becomes "Application.Invoke"), of which there were MANY
- remove unused local variables
- replace "variable as Class" with "(Class) variable"
- many other miscellaneous improvements
thanks rider 0u0
