update 5/2025:

Main issue with the new style is that they are using icon-opacity to hide ceratain icons by zoom level. It has two issues:

• we can't add icon-opacity for hover effect
• the icon is "there" even when hidden, so it can be clicked anyway

I tried to replace such layer with multiple layers with different minzoom, but it is a chore to do it right. Postponing.

TODO:

• find which layers encode OSM id as node number (outdoor_poi) and which as id+0/1/4
• find out how to addHoverPaint when they use it for zoom visibility

Possibly fixes #98

old outdoor	v2