# GUI Improvements - Tooltip Implementation

## Summary

Successfully added hover tooltips to all icon buttons in the TotalRecall GUI using the `github.com/dweymouth/fyne-tooltip` library.

## Changes Made

1. **Added Dependency**: `github.com/dweymouth/fyne-tooltip v0.3.3`

2. **Updated Button Types**: Changed all navigation and action buttons from `*widget.Button` to `*ttwidget.Button` to support tooltips.

3. **Added Tooltips to All Icon Buttons**:
   - Submit button: "Generate word (G)"
   - Previous word: "Previous word (←)"
   - Next word: "Next word (→)"
   - Keep button: "Keep card and new word (N)"
   - Regenerate image: "Regenerate image (I)"
   - Random image: "Random image (M)"
   - Regenerate audio: "Regenerate audio (A)"
   - Regenerate all: "Regenerate all (R)"
   - Delete button: "Delete word (D)"

4. **Enabled Tooltip Layer**: Added `fynetooltip.AddWindowToolTipLayer()` to the window content to enable tooltip rendering.

## Implementation Details

The tooltips now appear when users hover over any icon button, showing:
- The action name
- The keyboard shortcut in parentheses

This improves the user experience by making the interface more discoverable without cluttering the UI with text labels.

## Testing

To test the tooltips:
1. Run the application: `go run ./cmd/totalrecall`
2. Hover over any icon button
3. After a short delay, the tooltip should appear
4. Moving the mouse away hides the tooltip

## Notes

- The `fyne-tooltip` library is designed to be easy to remove when Fyne adds native tooltip support
- Tooltips work on all platforms supported by Fyne
- The library provides consistent styling with the Fyne theme