I spent quite a bit of time on this part…
To give you a quick overview: I improved the app’s interface experimenting with various elements, especially the charts and related features.
I utilized the exercises I had already been working on—specifically the functions—and adapted them for the app. This includes the sections on statistics, data simulation, and so on.
I’m not very experienced with CSS yet since I don’t use it often, I asked Antigravity to add some styling to give the page a more premium look, given that Streamlit supports the standard web trio (HTML/CSS/JS). I also came across FastHTML, which encapsulates these technologies; the API and the way it handles standard web operations using Python are pretty cool. It’s less abstracted and feels closer to “standard” web development.
There’s a sidebar to access the sections I set up—four of them: General, Anomaly Detector, Statistics, Simulator, and Journal.

Since I’m not fully comfortable with modularization yet and tend to get lost when the file or project size grows, that Agent helped me organize the code and use the correct functions and parameters. It’s easy to forget things like passing file paths as strings, missing commas, or similar details errors that can take a long time to track down if you aren’t testing thoroughly throughout the development process.