corn stripes

My other Dracanea, the Corn Plant, also seems to be thriving since its repotting.

You can see that some of the newer leaves have bright paler green stripes down their centers, whereas the older leaves below the stripes are faded. I don't know if this is because of the age of the leaf, or because less light reaches the lower foliage?

But I do know it's happy again because new young leaves are growing.