Kiosk Mode not working?

Trying to set up one of my dashboards to be in kiosk mode. In the yaml config for that dashboard I added the kiosk mode setting like below - but it’s not removing the side bar or header. What am I missing?

title: Outdoor Weather
path: outdoor-weather
icon: mdi:weather-cloudy
kiosk_mode:
  hide_header: true

Did you actually install the kiosk-mode custom component from HACS?

Yes, and restarted HA, presumably it’s installed correctly.

You seem to be at view level, not dashboard, is it not?

I tried to put it at the root of the dashboard config, as well as in the view config, neither seems to work:

kiosk_mode:
  hide_header: true
views:
  - title: Home
    kiosk_mode:
      hide_header: true
    cards:

Figured it out - had to add as a resource under ui-lovelace.yaml even though I installed it with HACs…

AFAIK, as soon as you have a resource: tag in your configuration.yaml, you always have to put the resources manually, be it coming from HACS or not.