? What does the grey in Dr. Lisa's sheet mean?

I can't find a legend to explain what the cells in grey mean.

mg PHOS/100 kcals

Some cells are grey, some white. What is the significance of the colors.

Thank you

 

Chan you cite a specific page with what you are talking about? I can't find anything here
http://catinfo.org/docs/CatFoodProteinFatCarbPhosphorusChart.pdf

 

This thread
http://www.felinediabetes.com/FDMB/threads/dr-pierson-new-food-chart.174147/

This link
https://docs.google.com/spreadsheet...m6PPfEUz9YmzMGMxkmcBk6uRR0/edit#gid=113878384

There is random grey in the
mg PHOS/100 kcals
column

 

To me it looks like Dr Lisa intended to alternate light shading of each row to make viewing across a row easier. It looks like the shading go messed up for some rows.

 

Thanks, I hadn't thought of that.