   #PHP Manual Image functions imagecolorresolvealpha imagecolorsforindex

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                                 imagecolorset

   (PHP 3, PHP 4 )
   imagecolorset -- Set the color for the specified palette index

Description

   bool imagecolorset ( resource image, int index, int red, int green,
   int blue)

   This sets the specified index in the palette to the specified color.
   This is useful for creating flood-fill-like effects in palleted images
   without the overhead of performing the actual flood-fill.

   See also imagecolorat().
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