Would it be possible to provide members with an option of identifying different categories within their own collections by colour, i.e. slightly different shades of green for the different grades (VG-Unc), damaged coins and forgeries in shades of red, gold or silver coins in yellow or grey, etc. etc.
I use the catalogue as a list of what I have/haven't got when out hunting for coins, so the option to allocate different colours would make it easier to see specific groups, e.g. coins that need to be replaced because they're damaged. This would make them more visible, especially on a smaller screen.