The sign was not physically damaged; the modification was done using black tarpaulins decorated with signs of peace and heart to alter the "O" to read lowercase "e". The previous text is in English. Here is a translation to Chinese (Simplified):
该标志没有受到实际损坏；这一改动是用装饰着和平与爱心标志的黑色防水油布将字母 “O” 改成了可读性强的小写 “e”完成的。