Green = Up ( long )
Gray ( Khaki ) = Neutral
Red = Down ( short )
over bought level = 70
over sold level = -70
This is Free Version.
It work in 1min, 15min, 240min candle.
and it doesn't have custom alert.
You should pay to use Orend full version.
buy here : http://cafe.daum.net/whitestart/TK8y/1
More detail about Orend (in Korean) : http://cafe.daum.net/whitestart/RpFe/21
PPT (in korean) : https://goo.gl/4Z6fji