This is simply a UI request to add a hover description to icons in the application.
For example, in the Live Traffic Toolbar there is a hamburger icon and an icon that looks like a microchip. I was too lazy to look up the documentation for a few months until finally I broke down
This could probably be helpful for other iconography in the application
Thank you for your interest in Fiddler Everywhere! The latest version of Fiddler Everywhere now has tooltips for each icon - as requested, you only need to hover the icon to see additional details about the session's type.