You can implement the freebox remote control with “picture Element Panel”.
Find a remote control picture → https://free.fr/assistance/91.html
And then a code like this
type: picture-elements
elements:
- type: icon
icon: 'mdi:power'
title: power
tap_action:
action: call-service
service: freebox_player.remote
service_data:
code: power
style:
top: 15%
left: 58%
image: /local/telecommande.png
NB : telecommande.png is snapshot of remote control, you have put in
homessistante_configuration_folder/www