Legend has it that the id of duel is colored.

First of all, we need to know the code of the color in the game, which can be found on the Internet. Take red as an example, the code is FF0000. Open the game and click the nickname of this round.

Adjust the input method to English input and find [].

Enter the code and nickname. The code must precede the nickname.

Click to start the game after exiting.

You can see that the name color has changed to red.