Is your feature request related to a problem? Please describe.
After kernelupdate the indicator in the tasklist should show something to get attention for reboot. (* od !)

Describe the solution you'd like
When reboot is needed it should show a visible red or orange or blue sign (* or !)

Describe alternatives you've considered
Maybe a systemmassege?

Additional context
State right after the update in m intupdate

and also the tray that is showing nothing: