WEB I18N GAP FIXED:
All 3 major browser engines now support the ability to create custom counter styles.

This is a significant step forward in enabling fully interoperable list numbering and other counters that reflect local approaches, especially for languages with smaller speaker populations.

Gap report: https://www.w3.org/TR/deva-gap/#issue93_lists

See Ready-made Counter Styles to use or adapt almost 200 patterns from around the world.
https://www.w3.org/TR/predefined-counter-styles/