Blank Calendars
Blank grids describe a rectangle of cells without dates or day numbers. This prevents a planner grid from falsely asserting Gregorian dates.
{
"grid": {
"rows": 6,
"columns": 7,
"cells": [{"date": null, "day": null}]
}
}
For a valid 6 × 7 grid the cells array must contain 42 cells. Validate the committed blank calendar fixture:
betacal-printlint blank fixtures/blank-calendar.json
The corresponding printable reference is the Blank Calendar.