Merchant fleet mod question

[bstanko6]

ok, I got it running and let me tell you, the ships look great, I did a test run and came across a Honduras freighter. Awesome. Can't wait to see the other schemes.

I do have another concern:

I placed everything in my JSGME, the merchants and paint skins., that is like 6 files and the skins have dates for when they change gradually over time. Am I to manually move these files as time goes by, or does it do that itself? To clarify, do the skins change themselves as time goes by, or do I have to change it? I cant find clarification.