.COLOR SET COLOR 
Sets the color of the "current" Color Object.
  Usage: 
      PASS         <color_value>              FIELD            SHARE? N
      GOSUB    0CD .COLOR SET COLOR
      *        Check for error
      IF       0CD .COLOR SET COLOR           NE
  Description: 
This routine sets the color of the "current" Color Object. <color_value> must refer to one of the valid color values as explained on the 
ColorSpec page. If blank or not passed, the "current" color object will be reset to default values.
The 
.COLOR SET COLOR:RGB and it's variations also set the color, but allow you to pass the Red, Green, Blue and Transparency values as separate fields.
See 
ColorSpec for more information on working with colors.
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-- 
JeanNeron - 2011-11-15