Track when a Customer Logs in/Logs out

[glacierbeach]

Is there any way to accurately track when a customer successfully logs in or logs out? I looked at web pixels API but that does not appear to be supporting this.

Next thing I tried was adding some script to determine when the login form was submitted or logout button was clicked. It appears to be working in my case but since I am trying to build an extension app, the identifier for the elements would differ based on the theme.