Osm:Wmthelp-rendering.slopemaplabels/en

The label for ski (downhill) routes is "guessed" from the tags in the following order:

1. If a `piste:ref` tag exists, make a text label with the `piste:ref` tag. 2. If a `piste:name` tag exists, derive a reference from that, first by using only upper-case letters and failing that by using the first letters of the name. 3. If a `ref` tag exists, make a text label with the `ref` tag. 4. If it is a relation and a `name` tag exists, derive a reference from that, first by using only upper-case letters and failing that by using the first letters of the name. 5. Give up.

Nordic slopes are marked with a sign just showing their colour, if a colour tag is present.