Button option in domain.yml templates

Rasa Open Source
1

Is there any way to customise CSS for buttons defined in domain.yml templates?

action_mark_done:

  • text: “Would you like to continue?”

    buttons:

    • title: “Yes”

      payload: ‘/mark_done{“choice”: “yes”}’

    • title: “No”

      payload: ‘/mark_done{“choice”: “no”}’