Additional Customization Options for Icons and Formatting

First, I'd like to thank you for maintaining react-json-view. It's an excellent library that I've been using extensively in my projects!

I've made some custom modifications to meet specific UI requirements:

1. Added an iconStyle='arrow' option to change the default triangle icons to arrows
2. Implemented a displayBraceColon={false} prop to hide the colon after braces

My Questions

• Are there existing, documented ways to achieve these customizations that I might have missed?
• If not, would you consider these features as potential additions to the library?

I'd be happy to contribute a PR for these features if you think they would be valuable additions to the library.
I share the commits where I implemented these customizations for your reference. https://github.com/chacha912/react-json-view/commit/a06cb3e709d0374f1bb634e500b6e06192bede80

Thank you for considering my request!

Review the issue's linked commit first to understand the existing icon and brace-colon customizations, then inspect the component's current customization options and documentation. Done means deciding whether both requested options are supported or accepted as library features, with documented behavior and coverage for the resulting display changes.