>According to https://www.python.org/dev/peps/pep-0492/#transition-plan, the intention was (is?) to make them keywords in 3.7.  As of Feb 11, that had not happened yet.  If and when it does, this issue will be taken care of.

I plan to do that in the next couple of weeks.

> I may consider adding a special context sensitive case for 3.6, if the colorizer code makes it easily possible.  Care is needed since it would be a mistake to mark them as keywords in the above statements.

If possible I would make 'async' and 'await' to be always highlighted. Even if a user writes <3.7 code and uses 'async' as a variable, it would still be great to let the user know that there is something wrong with this variable.