1. Use the game points to buy the "Daily Gift" service in the "Game Mall" in the lower right corner of official website/game. Every Sunday after 7: 00, each character (except the pet character) can get 1 dye potion (common dye potion/metal dye potion), which can be "randomly selected" from daily gifts outside Sunday. (recommended)
2. Use game points to buy "dye potion" props in the "Game Mall" in the lower right corner of official website/game (just know, don't do this).