Here's a great idea, guaranteed...if someone hadn't already beat me to it...

Can a master coder please make an oscillator histogram in the subwindow using two eAverages/AllAverages with [individual] price options, AND [include the color-change of the slope].
Then, overlay an OMA RSI on the oscillator histo for the 50-line cross.
Include the option for on-chart arrows with wingdings for when OMA RSI crosses 50 in concordance with the direction of the oscillator trend.

Any two Averages will accurately define the trend in the histogram, while OMA RSI, I've found to be the most sensitive and accurate for 50-line RSI trading.

(Pictured is an example, but excluding the requested slope color-change and optional arrows)
(I do not have the source code for the eAverages oscillator histogram)