ckeditor5_allowed_html-1.2.x-dev/config/schema/ckeditor5_allowed_html.schema.yml

filter_settings.filter_allowed:
  type: mapping
  label: 'Filter HTML'
  mapping:
    allowed_html:
      type: string
      label: 'Allowed HTML'
    filter_html_help:
      type: boolean
      label: 'HTML help'
    filter_html_nofollow:
      type: boolean
      label: 'HTML nofollow'