I realize there are similar questions to mine, but they have not the answer I seek. I want to use the COUNTIF( L5 , 0 ) function to change the color of a diagonal selection of cells. But Google Sheets only colors one cell of my selection. See picture.
I intend cells D17 and all cells diagonally right and down in a line to become black when cell L5 has a value of 0 entered. For those curious, I'm trying to make a consonant cluster sorter for my conlang projects.