This is the very first episode to show Mily's new paint scheme. Here it is: link
Marisa: *Stops at the harbor* Mily: *Sees Marisa stop next to her* Hey. When was the last time I saw you? Marisa: Too long. I see you got a new paint scheme. Mily: That's right. Do you like it? Marisa: I do. It really suits you. Mily: But I am going to miss my old paint scheme. Marisa: You can always switch back to your old paint scheme. Listen Mily, my train keeps getting heavier at every station I stop at. You wouldn't mind helping me out, would you? Mily: No, not at all. I'll help you.