This oscillator tool is good for many stuff, forex ,stocks ,etc the color are prouduce by the difference from the signal line (in blue) and 0 strong buy are green , lime weak buy red=strong sell,orange =weak sell above zero is buy zone ,bellow zero is bear zone The candle time determine the MTF function (also HTF but to little extent) and the length you can use if you want to see longer or shorter cycles few examples etc etc