Aroon Oscillator — Aroon Up minus Aroon Down, so a single line through zero.
The reference colours the line by sign and shades it to a hidden zero plot. This
library's line renderer has no per-bar colour (only histogram and column
honour colorBy), so the sign is carried by the band instead, which is what
actually reads on a chart. zero is a value column with no plot, exactly as
the reference display.none zero plot is: it exists only to give the fill a
second edge.
Aroon Oscillator — Aroon Up minus Aroon Down, so a single line through zero.
The reference colours the line by sign and shades it to a hidden zero plot. This library's line renderer has no per-bar colour (only histogram and column honour
colorBy), so the sign is carried by the band instead, which is what actually reads on a chart.zerois a value column with no plot, exactly as the referencedisplay.nonezero plot is: it exists only to give the fill a second edge.