Custom button card image icon

Hello

im sure there is an easy fix for this but i cant seem to get it.
Im new to HA and im trying to create a custom button, the button does what i want it to do but i want to use a PNG image (installed in /www) instead of an mdi:icon as the “icon”

this is the code i have thus far:

show_name: true
show_icon: true
styles:
card:
- border-radius: 30%
- background-color: white
type: button
tap_action:
action: navigate
navigation_path: /dashboard-kiosk/energy
name: Power

I would check out custom:button-card installed via HACs

thats what im using but cant get the png image to show.

not sure if im inputting the YAML correctly

Your code show you using the standard button card, not a custom one

Managed to get it in to custom:button-card

type: custom:button-card
tap_action:
action: navigate
navigation_path: /dashboard-kiosk/energy
name: Power
show_name: true
show_icon: true
entity_picture: /local/Lightning.bolt.png
show_entity_picture: true
size: 22px
styles:
card:
- border-radius: null
- background-color: null

Still unable to get the image to display

this worked:

type: custom:button-card
tap_action:
action: navigate
navigation_path: /dashboard-kiosk/energy
name: Energy
show_name: true
show_icon: false
show_entity_picture: true
entity: null
entity_picture: /local/Lightning_bolt.png
size: 100px
aspect_ratio: 4/4
styles:
card:
- height: 180px
- width: 180px
- border-radius: null
- background-color: null