Suggestion Box

I was playing around with this using the genre box to highlight entries of a particular genre. Items can have three genres, but it looks like the highlighting logic is only looking at the first genre field. Would it be possible to change it to look across all three genres for a keyword match?

I guess a problem would be that multiple highlighting rules might then flag the same item, but you could get round this by giving priority to the rule that matches the earliest declared genre, i.e. genre 1 trumps genres 2 and 3, genre 2 trumps genre 3.