title: How to use pango in script with imagemagick
body: <p>Here is a simplified version of the code I'm currently using :</p>
  
  <pre><code>cat $FILES | while read line; do
       convert -fill $FG_COLOR -background $BG_COLOR \
           -size ${line_width}x${line_height} -page +${x_margin}+${y} \
           label:"${varL} and ${varR}" miff:-
  done | convert -size ${SCREEN_W}x${SCREEN_H} xc:$BG_COLOR - -flatten image.jpg
  </code></pre>
  
  <p>And it is working well !</p>
  
  <p>But I wish to have different colors for <code>${varL}</code> and <code>${varR}</code>, and I guess I should use <code>pango</code> instead of <code>label</code>. Am I correct about that ?</p>
  
  <p>But by keeping the same code and just replacing <code>label</code> by <code>pango</code> I have an unexpected error :</p>
  
  <pre><code>convert-im6.q16: width or height exceeds limit
  </code></pre>