[amibroker] Ribbons: Is there a "transparent" or "clear" setting for the color?

["sebastiandanconia" <sebastiandanconia@xxxxxxxxx>]

Using the code below I have a ribbon that runs the full height of the 
chart.  (I use it to display economic recessions on stock index 
charts.)

What I want is to display just the ribbon in color, leaving the rest 
of the chart "see-through."  The "colorBlack" in non-recession 
periods blacks-out the gridlines on my black-background charts.

Any way of doing this?  TIA.


Sebastian


_SECTION_BEGIN("Recession Ribbon");
REC=Foreign("^Recession Ribbon","C")==0;
NOREC=Foreign("^Recession Ribbon","C")==1;


Plot( 2, /* defines the height of the ribbon in percent of pane width
*/"ribbon",
IIf( REC, colorDarkYellow, IIf( NOREC, colorBlack, 0 )), /* choose 
color */
styleOwnScale|styleArea|styleNoLabel, 0, 1 );

_SECTION_END(); 



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