## The current behavior

The full value of the `key` is very difficult / impossible to find and use in the interface of the React Devtools.

![Kapture 2020-04-22 at 11 47 47](https://user-images.githubusercontent.com/1935696/79997715-25222680-84ba-11ea-97ba-51f1679a8c91.gif)

Only managed to find it by accident :(

## The expected behavior

The `key` is visible in the props list to the right.

### Detailed Proposal

As mentioned below in https://github.com/facebook/react/issues/18702#issuecomment-617924196

Add a light divider and new section in the props panel to the right.

Potentially also add a question mark that shows an explanation about the fact that things in this section are not really props.

Ref (Original implementation): https://github.com/facebook/react-devtools/pull/328
const displayName = getDisplayNameForFiber(fiber) || 'null';
      const parentDisplayName =
        (parentFiber != null && getDisplayNameForFiber(parentFiber)) || 'null';
      
      
      
      console.log(
        `[renderer] %c${name} %c${displayName} %c${
          parentFiber ? parentDisplayName : ''
        }`,
        'color: red; font-weight: bold;',
        'color: blue;',
        'color: purple;',
      );
    }
  };
  
  const hideElementsWithDisplayNames: Set<RegExp> = new Set();
  const hideElementsWithPaths: Set<RegExp> = new Set();
  const hideElementsWithTypes: Set<ElementType> = new Set();
   Highlight updates