How can I see "what changed" in the component code?

TL:DR; Use the red/green “Diff from Original” view.

After the code is generated, click the “Diff from Original” button next to any file.

You’ll see a red/green diff view that highlights what was removed (in red) and what was added (in green), compared to the original file in your codebase.

This helps you quickly understand exactly what Fei updated, before accepting the changes.