I found these sets of pictures from the USS Boston Cruise book:
Manus is an island in the Admiralty Island chain, just north of New Guinea. There is an exceptional port called Seeadler Habor at it’s northeast corner. It was here, after the japanese were defeated on the island, that the navy set up a floating drydock. In late November, the USS Boston entered the drydock and her boilers were overhauled, she was painted stem to stern and she was relaunched by mid-December.
Here, she enters drydock:
The ship in drydock:
Working on the ship:
All hands were required to help paint: