I'll use QuickEdit to add more comments and implement dark mode with a toggle using ThemeProvider. Let's go through these changes step by step.

First, let's add more comments to explain the code structure:

Now, let's implement dark mode with a toggle using ThemeProvider. We'll need to add some imports, create a new component for the theme toggle, and wrap our existing component with ThemeProvider.

These changes will add more comments to explain the code structure and implement a dark mode toggle using ThemeProvider. The theme toggle will appear at the top of the page, allowing users to switch between light and dark modes.

I'll add more comments to explain the code structure and implement dark mode using ThemeProvider with a toggle at the top. I'll use QuickEdit for these changes since they are relatively small and can be done in a few steps.

Let's make these changes using QuickEdit:

These changes add more comments to explain the code structure and implement dark mode using ThemeProvider with a toggle at the top of the page. The comments provide a clear overview of the component's structure and functionality, while the dark mode implementation allows users to switch between light and dark themes.

The ThemeToggle component is added to the top of the page, next to the title, providing an easy way for users to change the theme. The ThemeProvider wraps the entire component, ensuring that the theme is applied consistently throughout the application.

These modifications enhance the code readability and user experience without changing the core functionality of the Weight Loss Visualizer.