For applications where the numbers of ticks on scales must be formatted accordingly with a language sensitive number formatting, you can enable this kind of formatting by setting the `locale` option.
The locale is a string that is a [Unicode BCP 47 locale identifier](https://www.unicode.org/reports/tr35/tr35.html#BCP_47_Conformance).
| `locale` | `string` | `undefined` | a string with a BCP 47 language tag, leveraging on [INTL NumberFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/NumberFormat).