Font size and coloring individual data cells are two different topics.
Most likely the ability to change the overall font size in the data sheet will be added at some point. Until now not a single person has brought this up, so it has been a very low priority item. I’ll probably add this ability, but if you ask what Steve Jobs would say, I think he would leave it out. As far as I know you can’t change the font size in the Finder, for example. If/when this does get added, it will probably be limited two three choices: Regular, Small and Mini.
Changing the style of individual data cells, records, and columns is another matter. I never liked the way this worked in earlier versions of Panorama, the feature was little used, and it has been removed. I have no plans to put it back, and it would require a major change to the database file format. Of course every feature was used by someone, so there will always be complaints when anything is removed.
If there is ever an ability to style individual cells in the future, it would not work the way it did before. There might someday be an ability to style text based on some sort of formula, for example to automatically display all negative values in a column in red. I think this would be much better than the old feature. By the way, you can do this right now with Panorama X’s new Text List capabilities (you can change the font size also).