SpecialEvent.txt format:
Enter one line only, using this format:
YYYY-MM-DD;Event Label;color
Examples:
2026-04-05;Easter Sunday;blue
2026-12-24;Christmas Eve Service;red
• Date must be in YYYY-MM-DD format.
• Label is the text that appears on the signup sheet.
• Color must be blue or red (defaults to red if invalid).
• Do not add extra lines or blank lines.