Any documentation about the different formatter options

[opiation]

Is there an API or existing exhaustive documentation off the formatter options?

Looking at the hexdocs for ESpec.Formatters.Doc module, format_example, format_result and init all appear to support options (through opts) but there's no documentation there about which options. The only documentation to suggest any options is in the README under Formatters mentioning the diff_enabled? and out_path options.

Have I missed another source of documentation or is that all the documentation available about supported formatter options for each built-in formatter?