title: Change DBGRID row color on field value in delphi
body: <p>How to change color of dbgrid rows that have the same value on a field in delphi?</p>
  
  <p>for example all rows that have the same teacher</p>
  
  <p>note: those rows are grouped, and come after each other in dbgrid</p>
  
  <p>thanks in advance</p>