title: How to properly use "moduleDisplayString" in Veins 4.4?
body: <p>I have used Veins 4.4 and the simulations are executed normally.</p>
  
  <p>However, I would like to change the appearance of vehicles in graphic mode. By analyzing the code, I noticed that the "moduleDisplayString" parameter is used to do this, but even using OMNeT's default DisplayString values I always get a mapping error.</p>
  
  <pre><code>[...]
  *.manager.moduleType = "sdvn.nodes.Car"
  *.manager.moduleName = "vehicle"
  *.manager.moduleDisplayString = "i=misc/sun;is=vs"
  [...]
  </code></pre>
  
  <p>Error message:</p>
  
  <pre><code>invalid syntax for mapping "i=misc/sun;is=vs" for parameter "moduleDisplayString"
  </code></pre>
  
  <p>Has anyone been able to use this parameter correctly?</p>