I would love if an alternative card graphics is provided. I think club and spades look almost the same at a quick glance in BGA. An alternative front could be provided as a viewing option similar to Carcassonne having both old and new cards selectable for each player.
In some card decks there are 4 colours used which make it easier to quickly glace and see which suit the card is. One example have heart in red, diamond in orange, spade in black and club in grey.
Wikiperdia on 4 color decks
In some card decks there are 4 colours used which make it easier to quickly glace and see which suit the card is. One example have heart in red, diamond in orange, spade in black and club in grey.
Wikiperdia on 4 color decks