RSI Background Color Appearing as Vertical Lines

I've altered the built-in RSI code to add a background of green when above the 50 midpoint, and add a background of red when below the 50 midpoint (background is overlay-ed on the chart, not in a pane).

Additionally, I've set the indicator to the 1 hour time frame, rather than same as chart . However, when I'm viewing time frames shorter than 1 hour, the background appears as vertical lines, rather than a solid background.

Is it possible to have the background appear as one solid color in this case?

CODE

//@version=4
study(title=Relative Strength Index, shorttitle=RSI, overlay=true, format=format.price, precision=2, resolution=")
len = input(14, minval=1, title=Length)
src = input(close,Source", type = input.source)
up = rma(max(change(src), 0), len)
down = rma(-min(change(src), 0), len)
rsi = down == 0 ? 100 : up == 0 ? 0 : 100 - (100 / (1 + up / down))
long=rsi>50
short=rsi<50
bgcolor(long ? color.green : color.red, transp=75)

Hello trader

If you mean to set your indicator on hourly on a lower timeframe chart, this isn't possible.
TradingView displays (at best) unexpected results when we use a multi-timeframe indicator on a lower chart timeframe

The contrary is possible though i.e. a multi-timeframe indicator with a timeframe greater than the chart timeframe.

Hi Dave,
Thanks for the response. I thought that might be the case, unfortunately. I appreciate your insight.