Attention!
If you have a breeding that was taken
before this point, you may still request your cub grow onto alternate lines, but any breedings taken after this point will no longer be available to switch lines.
The reason being, I am now required to color the adults at the same time that I color the cubs, so unless you request growth onto alternate lines at the time your breeding is taken, I'm not going to color them twice. xD
However, once your cub has grown to adult, you may request an adult conversion and pay the usual amount.
If you have questions, feel free to ask!