I have a sheet with a column that is filled with formulas that brings in text data from another sheet. If the formula resolves to some text I want to highlight the cell with yellow. If the formula resolves to blank, meaning that there was no data to bring in from the other sheet (using JOIN(COLLECT)), I want to have no highlight. The conditional formatting seems to pick up the fact that there is a formula in the cell, and thus the cell is not truly blank, so even though the cell looks blank it gets highlighted. How can I only fill the cell with a color if there is actually something visible in the cell?