Pi Day Advent Calendar Grid cross stitch pattern download

A blank grid, the 0th piece of my Pi Day Advent Calendar cross-stitch pattern. The fourteen inner sections will be released one-a-day starting on March 1st, 2020. They'll be available free on Gumroad until March 31st, after which I plan to clean them up and post the entire set on my Etsy (https://www.etsy.com/shop/Mathysphere).

Once completed, this pattern will measure 3¾ inches square, and will (eventually!) use five colors; a key is included in the PDF. This pattern is designed to be made on black fabric.