processmaker-files/workflow/engine/templates/cases/caseMessageHistory.html

<link rel="stylesheet" type="text/css" href="/css/classic.css" />
<style type="text/css">
  html{
    color:black !important; 
  }
   body{
    color:black !important; 
  }
</style>
<div id="processes-panel" width="80%" />