This morning I found this notice in the mero-window here:
It said that the mero-window has been changed into new version, please use the new mero-code!
After changing the new mero-code, the mero-window changed into this skin type:
...this little bird skin type is so cute! ^0^
P.S. The first script inside the [ブログパッツ設定] in the page of [各種設定] is the new mero-code! ^_^
And one more thing I found out: the system of Item has been changed too! In new version, even the same Item, you can get it again! It's good for people who would like to trade in the mero market...I think this change is quite good! (even though I didn't go to the market for trading Item or Melon before! :P)