
It seems that my problem is quite simple. But I’m got stucked at the embedding icon into Button.
From documentation I’m figured out that Button model has an icon property with some Nullable(Instance(AbstractIcon)) type.
But I really can’t understand that I should set to this Icon property (URL, file-path or something else) ?
All my tries ends with same errors like:
expected either None or a value of type Instance(AbstractIcon), got ...
My icons are stored on local, but also must be downloaded from URL.
Unfortunately I don’t find any examples at docs, support and stackoverflow. But I am realizing that answer is very very simple.

