*Steps to reproduce:*
# Open a Unity Project
# Create a new Input Action Asset via GameObject > Create > Input Actions
# Open the Input Action Asset in Input Actions Editor by double clicking on it
# Hover over the + symbols next to Action Maps header, Actions header, or each Action

*Actual results:* There is no On Hover Behaviour and it is not clear to the user that they are hovered over the +

*Expected results:* There is On Hover Behaviour that makes it clear to the user that they are hovering over the +

*Reproducible with versions:* 7000, 1.11.2, 1.3.0

*Tested on (OS):* Windows 11

*Notes:* 
* If there is an On Hover Behaviour, then it is so minimal that it is not noticeable.