Still wrestling with the UI. Building the functionality turned out to be much easier than designing an interface that actually feels right.
Today’s progress:

Added a toggle to switch between Text and Tree views.

Implemented the Tree view for easier JSON exploration.

Spent a lot of time refining spacing, colors, and CSS to improve readability and consistency.

The biggest challenge right now isn’t adding features—it’s finding a design that feels polished while keeping the dark developer aesthetic. Every iteration gets closer, but I’m still not satisfied.