    URL    = "https://b24-ar17wx.bitrix24.by/rest/1/av5...";
    ChatID = "3390";

    Color = "AZURE";

    Result = OPI_Bitrix24.ChangeChatColor(URL, ChatID, Color);

    URL   = "b24-ar17wx.bitrix24.by";
    Token = "a5b00469006e9f06006b12e400000001000...";

    Color = "PURPLE";

    Result = OPI_Bitrix24.ChangeChatColor(URL, ChatID, Color, Token);