Airport layer bug in Canada

[louismg]

In Canada, the airport layer also displays weather stations. Airports codes in Canada all begin with CY (CYYZ, CYUL...).

The weather stations appear and are always decoded as LIFR, probably because you don't have visibility and cloud information for them.

I would not necessarily remove them, as it's useful to see. But I'd definitely put them in light gray or lighter colour different from the airport flight rules colours. But I'd rather they be removed than all appear as LIFR because it makes it difficult to see an overview of current flying conditions.

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