Picture Glance Card - set an image on Camera status "Spleep"

Configuration
1

Hello Everybody,
I am using a Picture Glance Card to show my camera live stream.
Everithing works fine but I would like to place an image instead of the camera live preview when it is on sleep mode.
This is my config:

camera_view: live
type: picture-glance
title: Kitchen
entities:
  - entity: switch.c6n_sleep
camera_image: camera.c6n_xxxxxxx
entity: switch.c6n_sleep
state_image:
  'on': /local/images/imagexxx.png
2

I never used the pic.glance card but for my floorplan I use this

type: picture-elements
elements:
  - type: image
    entity: camera.tapo_camera_545d_hd
    state_image:
      idle: /local/floorplan/home/surveillance_camera.png
      'off': /local/floorplan/home/invisible.png
3

I will give a try, thank you!