Significant UI changes and missing features compared to Store screenshots (Heatmap, Bookmarks, etc.)

Hello, I recently discovered your extension on the Chrome Web Store. Based on the description and reviews, it looks like a fantastic tool.
However, after installing it, I noticed that the current version differs significantly from the screenshots shown on the Web Store and your official website.

Specifically:
Missing Features: I cannot find the Heatmap or Bookmarks features.
UI Layout Changes: The interface looks quite different from the documentation.
Functionality Issue: The "Code Only" mode seems to behave differently; it requires the full answer to be displayed before it becomes visible/active.

Partial display as follows:

Environment:
OS: macOS 13.6.7
Browser: Chrome 144.0.7559.112

Troubleshooting: I have disabled all other extensions to rule out any potential conflicts, but the issue persists.

Questions:
Is this a deliberate design change in the recent updates?
Are there plans to restore the previous features (Heatmap/Bookmarks) and the original UI layout?

New Feature Suggestion:
Currently every time open the display, i need to click the button. Can it be modified to automatically open when the mouse is placed on the icon, close when the mouse leaves the icon, and always keep the display when clicked, requiring another click to close. This can be a good solution for a simple glance or a detailed view.

Thank you for your hard work on this project!