Bug report: Map Themes menu has disappeared (sw 18.16)

As the manual says it should be there

Map Themes

You can change the map theme to display data optimized for your activity type.

Hold MENU, and select Map > Map Theme.

None

Uses the preferences from the system map settings, with no additional theme applied.

Marine

Sets the map to display data in marine mode.

High Contrast

Sets the map to display data with higher contrast, for better visibility in challenging environments.

Dark

Sets the map to display data with a dark background, for better visibility at night.

Popularity

Highlights the most popular roads or trails on the map.

Resort Ski

Sets the map to display the most relevant ski data at a glance.

Aviation

Sets the map to display data in aviation mode.

As  the other guys owning Enduro 2 for more time than me confirmed that earlier Map theme was in the menu in line with the manual: forums.garmin.com/.../1845302

Finally Iet me remark that I have been using Map Themes happily for years, since this feature  was  available for alll my  Fenixes with maps.