consumer_image_styles-8.x-3.0/config/schema/consumer_image_styles.schema.yml

jsonapi_extras.enhancer_plugin.image_styles:
  type: mapping
  mapping:
    styles:
      type: mapping
      mapping:
        refine:
          type: boolean
        custom_selection:
          type: sequence
          label: Custom Selection
          sequence:
            type: string
            label: Image Style ID