Date picker cancel button does not respect color theme/dark mode
    
    
    
      
      
      
        
The date picker is styled by admin's widget.css which has hard-coded colours for the date picker's cancel button. 
Instead, the CSS variables --close-button-fg and --close-button-bg should be used.
       
     
   
 
      
        
        
          Change History
          (5)
        
          
  
  
  
    
      | Owner: | 
      
        changed from nobody to Fabian Braun
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      | Status: | 
      
        new → assigned
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      | Cc: | 
      
        Thibaud Colas Sarah Abderemane Tom Carrick added
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      | Keywords: | 
      
        accessibility added
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      | Triage Stage: | 
      
        Unreviewed → Accepted
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      | Triage Stage: | 
      
        Accepted → Ready for checkin
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      | Resolution: | 
      
        → fixed
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      | Status: | 
      
        assigned → closed
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In 34ca1d3: