nv PGPLOT_ENVOPT IVG
</pre>
</dd>

<dt>PGPLOT_FOREGROUND</dt>

<dd><i>Color name.</i> This variable can be used to change the color representation of color index 1 (the ``foreground'' color) from its device-dependent default (usually white or black). The value of the variable should be a color name defined in the color-name database. If the variable is defined, the effect is the same as a call to <a href="subroutines.html#PGSCRN">PGSCRN</a> with this name as argument immediately after the graphics device is