Value mappings not working in table

[robert8103]

• What Grafana version and what operating system are you using?
  8.3.6 in Docker

• What are you trying to achieve?
  I want to have table cells coloured by a value mapping

• How are you trying to achieve it?
  I try to use the Overwrite Value mapping

• What happened?
  The cell colour does not change

• What did you expect to happen?
  That the cell colour is changing according to the value mapping

• Can you copy/paste the configuration(s) that you are having problems with?
  Table + overwite:
  

  
  
  Overwrite config:
  
  

• Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
  No

• Did you follow any online instructions? If so, what is the URL?
  Configure value mappings | Grafana documentation

[jangaraj]

You need to set also cell coloring mode (e. g. bacground) in the panel config.