Distribution & Danger symbols

1) We should show spatial distribution of avalanche problems, but as symbol. This can be a couple of peaks colored in relation to the amount of terrain covered by the problem (isolated, specific, widespread). I could not find an example, but keep searching.
2) Manu suggested to have drawing (triangle) for all elevation level hazard levels. The drawing should avoid making alpine looks "small" due to position on top and smallest volume. Potential solution (source Avalanche Canada: https://www.facebook.com/messenger_media/?attachment_id=1132587484082098&message_id=mid.%24gABTiKuyF702MtVNB3mGhA34UBHkh&thread_id=5878173518917453)

No source files or tests are named. Start by reviewing the two proposed symbol concepts in the issue and the linked Avalanche Canada reference, then clarify the visual requirements and identify the relevant interface entry point; done requires agreed designs for spatial distribution and elevation hazard levels.

Written by the indexing model from the issue text.