Epic - Support Windows 11 Look and Feel for WPF

[singhashish-wpf]

Description

This is the parent issue that tracks the User Stories / Tasks for Fluent Theming.

• Branch, Build Setup, Review, Guidelines #8547
• Control Specific Styling #8539
• Theme Specific Styling #8541
• System Theme Interactions #8542
• Custom TitleBar : Using WindowChrome and Snap Layout #8543
• Sample applications update #8551
• Theme Manager and Theme Switching #8553
• Public API Requirements : ThemeManager, ThemeMode ?? #8540
• Rounded Corners #8544
• Window Backdrop Support : Mica and Acrylic #8545
• Visual Studio Toolbox and Designer Integration #8546
• Accessibility Review and Testing #8548
• Compatibility Review and Testing #8549
• Fallback /Opt-out mechanism #8550
• Testing for Fluent Theme #8552
• OSS Scrubbing #8554
• Missing Control Styles in Windows 11 Themes #8698
• Enabling Fluent as Default System Theme - Next Steps ? #9283
• Modify the template projects for wpf to have win 11 theming styles #10392
• Fixing Fluent Style Issues #10393