title: Imagemagick label font size/background
body: <p>I can't seem to control font size, background and fill.</p>
  
  <p>command 1:</p>
  
  <pre><code>convert             \
     testimage.jpg    \
     label:'Days: 0'  \
    -background Black \
    -fill White       \
    -pointsize 1      \
    -gravity center   \
    -append           \
     days_1.jpg
  </code></pre>
  
  <p>image:</p>
  
  <p><img src="https://i.stack.imgur.com/FoTPN.jpg" alt="enter image description here"></p>
  
  <p>command 2: </p>
  
  <pre><code>convert             \
     testimage.jpg    \
     label:'Days: 0'  \
    -background White \
    -fill Black       \
    -pointsize 48     \
    -gravity center   \
    -append           \
     days_2.jpg
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/h2Exm.jpg" alt="enter image description here"></p>