Flag's colours :
Left : Orange
Middle : White
Right : Green
Meaning of the flag's colours (1):
Orange : Represents the big,tropics grasslands on the North.
White : Represents the river.
Green : Represents the natural resources on the virgin forests.
Meaning of the flag's colours (2):
Orange : Represents the patriotism and prosperous of the city.
White : Represents the wish of peace and united.
Green : Represents the wish of the future of the citizen.