What Line is This? / これは何線？

A couple of weeks ago as I was headed home from work, my usual train wasn't its usual colors. It was entirely brown. I did a double-take thinking I was on the wrong platform. But no, it was the right train. Meiji Chocolate collaborated with the Yamanote Line to celebrate the 100th anniversary of its naming.　For those of you who are unfamiliar with the standard color of the Yamanote Line, it is Green and Gray.

二週間前位仕事から帰ったら、見たことにい電車が品川駅に停車してた。あれ？僕ホーム間違った？やっ、やっぱり山手線だ。明治チョコと山手線がコラボして、山手線命名１００周年記念の為、限定期間で運行してます。