I installed Sync Trayzor todayand find it works well.
However, I do have a little niggle because of the way I run syncthing.
I installed syncthing earlier, and start it 10 minutes after logon via the task scheduler.
This is so that this background task doesn't slow me down at logon.
Now Trazor has an option to start at logon with a nested option to start minimised.
I changed the task to start Trayzor rather than syncthing and re-booted.
10 minutes after logging on, Trazor started up with its window shoved in my face.
The simple solution would be to allow start minimised when not starting automatically at login.
Alternatively, a configurable delay could be specified in the settings.
So, this is really a feature request rather than a niggle.
Just hope this doesn't get buried in this long thread.