<slide title="Rendering PDF pages">
    <blurb title="Using colors">
        Of course, Drawing routines can also render things in color. The color
        a particular rendering operation is to use is set before the operation
        using the %pdf_setcolor()% function
    </blurb>
    <example type="php" fontsize='1.4em'><![CDATA[<?php
    pdf_setcolor($pdf_r, $fill_type, $color_type, $c1, $c2, $c3, $c4);
    pdf_circle($pdf_r, $width, $height, 100);
    pdf_stroke($pdf_r);
?>]]>
    </example>
    
</slide>