Multiple instance of indicator-sensors should be disallowed on the top bar.

[sunbearc22]

In a terminal, when I submit the indicator-sensors command twice or more I can see two of more instances of indicator-sensors in the top bar. I think such multiple occurrences should be disallowed .

Also, there appears to a few warning and error in Ubuntu 20.04:

$ indicator-sensors

(indicator-sensors:9708): Gtk-WARNING **: 01:34:11.938: Theme parsing error: gtk.css:1555:23: 'font-feature-settings' is not a valid property name

(indicator-sensors:9708): Gtk-WARNING **: 01:34:11.945: Theme parsing error: gtk.css:3593:25: 'font-feature-settings' is not a valid property name

(indicator-sensors:9708): Gtk-WARNING **: 01:34:11.946: Theme parsing error: gtk.css:4055:23: 'font-feature-settings' is not a valid property name
[aticonfig] WARNING: Error calling aticonfig to detect if running on a hybrid system with integrated GPU active: Failed to execute child process “aticonfig” (No such file or directory)

Also, as far as I know, my system is using a discrete GPU and the CPU has no integrated GPU. Don't understand why the last WARNING appeared.