Customizing font colour of one column for a tableGrob in R?

Question

I would like to customise the font colour of one particular column in my tableGrob.

Here is the original table, and this is what I would like the table to look like with

Answer 1

colours are recycled columnwise, so if you want different colours for different columns you need to pass a full matrix of colours, e.g.

colours <- matrix("black", nrow(count), ncol(count))
colours[2:nrow(colours), ncol(colours)] <- "white"