hiddenDays *1.6.2*
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Exclude certain days-of-the-week from being displayed.
Array, *default*: `[]`
The value is an array of day-of-week indices to hide. Each index is zero-base (Sunday=`0`)
and ranges from `0-6`. Example:
hiddenDays: [ 2, 4 ] // hide Tuesdays and Thursdays
hiddenDays: [ 1, 3, 5 ] // hide Mondays, Wednesdays, and Fridays
By default, no days are hidden, unless [weekends]() is set to `false`.