This indicator works off of the RSI levels as a guide to buy and sell. 70-100 is sell zone and 30 - 0 is buy zone. You make every part of the RSI the same colour as your back ground except the 70 and 30 lines and then you push it to the back (unless you use RSI for divergence then you can keep it up if it doesn't confuse you).
When wondering the trend the cloud...