Market open/closed indicator

[Donkey-Doug]

Add option to show whether the market is currently open or closed.

[user8446]

Also, the app still updates on the days the market is closed. Do you think it's worth adding having the updates not check on those days?

For a different application, I use Calenderific to yearly pull in the observed holiday dates. For your case a script could pull in the dates and post to GitHub and the app could check to see if the market is closed or not.