the back-light effects when full back light is applied (BACKLIGHT=1). In the first
two examples, BACKFILL and OUTLINE have been specified. The third example
shows green text against a white background.
Black TextGray TextGreen Text
Defaults
0.5 when no GROUP= or COLORRESPONSE= option is used.
0.75 when the GROUP= or COLORRESPONSE= option is used.
Range
0.0–1.0, where 0.0 specifies no effect and 1.0 specifies maximum effect
Note
This option is most effective when text color has a low level of contrast
with the background. It is also effective when the background is cluttered.
CLUSTERAXIS= X | Y
specifies the axis to use for clustering groups when GROUPDISPLAY=CLUSTER. ...
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