L’utilisation d’un switch comme commande et le contrôle par une light est disponible sur le Discord…je le mets de suite ici… 
Edit:
Le rendu est celui de gauche :
button_card_templates:
light_buttons_with_colors_and_switch:
show_name: false
show_icon: false
variables:
entity_light: light.default
entity_switch: switch.default
icon: mdi:lightbulb
name: Lumière
styles:
card:
- border-radius: 20px
- box-shadow: var(--box-shadow)
- padding: 12px
grid:
- grid-template-areas: '"item1" "item2"'
- grid-template-columns: 1fr
- grid-template-rows: min-content min-content
- row-gap: 12px
custom_fields:
item1:
card:
entity: '[[[ return variables.entity_switch ]]]'
name: '[[[ return variables.name ]]]'
icon: '[[[ return variables.icon ]]]'
tap_action:
action: toggle
template:
- icon_info
- light_with_colors
type: custom:button-card
item2:
card:
template: list_items_light
type: custom:button-card
custom_fields:
item1:
card:
type: custom:slider-card
entity: '[[[ return variables.entity_light ]]]'
radius: 14px
height: 42px
mainSliderColorOff: var(--google-grey-500)
secondarySliderColor: rgba(var(--couleur-theme),0.05)
secondarySliderColorOff: rgba(var(--couleur-theme),0.05)
thumbColorOff: white
item2:
card:
icon: mdi:palette
tap_action:
action: more-info
type: custom:button-card
entity: '[[[ return variables.entity_light ]]]'
template: widget_icon
template:
- light_buttons_with_colors_and_switch
type: custom:button-card
variables:
entity_light: light.salon_lampe_01
entity_switch: switch.ptitefamille_salon_lampe1
name: Salon
icon: mdi:floor-lamp-dual #optionel