I believe the black ink used for displaying the bits was originally intended for funded coins or Pre-funded coins to be more specific. They started using the green ink for the bits when they resumed operation and were supposed to be funded after transit, when people had their coins in hand.

I could be wrong. Feel free to correct me.

Here is more info from Elias' website...http://www.cryptonumist.com/coin/lealana-0-5-btc-silver/