UI Theming and Button Styling Enhancements

[iDrDex]

Summary

Successfully implemented comprehensive UI theming and button styling enhancements for MammoChat.

Key Features Added

Theme Switcher

• Added palette icon dropdown menu in header
• Individual menu items for default, dark, and high_contrast themes
• Proper positioning and dark mode compatibility

Button Styling Consistency

• Unified header buttons (dark mode toggle, theme switcher) with flat round styling
• Enhanced footer buttons with beautiful gradient backgrounds (pink-to-mint) in light mode
• Consistent solid colors in dark mode across all buttons

Visual Polish

• Fixed icon contrast issues on gradient backgrounds
• Enhanced hover effects with smooth animations and transforms
• Added focus and active states for accessibility
• Professional shadows and transitions

Dark Mode Compatibility

• All buttons adapt properly to theme switching
• Consistent colors and contrast in both light and dark modes
• Maintained healthcare brand identity

Technical Details

• Updated main.py with new menu structure and button styling
• Enhanced styles/healthcare.css with polished button effects
• Maintained existing theme service architecture
• Preserved all existing functionality and accessibility

Testing

• Application runs successfully with all new features
• All themes work correctly
• Dark mode switching functions properly
• Button interactions provide appropriate feedback

Closes #UI-001