Add option to format coloring outside of just columns

[ophamill]

Great Package!

In toying with some data I'll present in a few months, I noticed the "data_color" function within the gt package doesn't support coloring by rows or coloring specific cells alone. Are there any plans to support that functionality in the future?

[rich-iannone]

This can be supported, and it should. The rows argument could be introduced to limit the scope of coloring to specified rows.

Side note: there is also the somewhat related issue of whether to add functionality to use data in cells to color adjacent cells.

[LukasWallrich]

@rich-iannone, I was just looking for the functionality you described in the side-note, i.e. to color an adjacent column and then hide the column with the raw data. It would be great if that could be implemented, maybe with an optional values_from argument?

In case anyone else is looking for a workaround in the meantime: formatting can be moved between columns by changing the colname in the _styles tibble, for instance like this

tab$`_styles`$colname[tab$`_styles`$colname == "impl_bias"] <- "Implicit bias"