Logging Out of Reflection.app
1. Click "Settings" from the menu bar
2. Click "Your Account"
3. Scroll Down to the section "Information"
4. Click the "Logout" button
This will log you out of your session, but you will still be logged into your Google account if you signed in with Google. For additional account security, you many want to logout of your Google account.
1. Visit google.com and click on your profile picture in the top right hand corner of the screen.