It would be handy to de-emphasize certain fields in the attribute table.
Such as making the text colour grey for the ObjectID, FREQUENCY, and FIRST_t_unique_id fields in this screenshot:
I'm aware that I could highlight the other fields like t_species to make them stand out. Or I could hide unimportant fields. Those techniques work, but I'd also like the ability to grey out other fields.
I do that kind of thing in Excel, and it is quite useful. It's almost like I have three levels of emphasis: high, medium, and low.