Text Color in "Messages"tab of Incident workspace is appearing as white instead of black

Summary:

Hi,

In one of our agents .Net console, while opening an incident, in the messages tab, the text color of customer entry is appearing as white instead of black. its occuring for only 1 agent and we tried local cache clearing and reinstalling app but none of it worked . Any solution to make font color reappear as black instead of white? Thanks

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Version (include the version you are using, if applicable):

20c

Code Snippet (add any code snippets that support your topic, if applicable):