Lightroom Classic 15.3 on macOS Sequoia does not apply Dark Mode styling to the window title bar and chrome.

Subject
Lightroom Classic 15.3 does not apply Dark Mode styling to window title bar and chrome on macOS Sequoia

Description of Issue
Lightroom Classic 15.3 on macOS Sequoia 26.4.1 (25E253) does not correctly follow macOS Dark Mode appearance conventions. When macOS Appearance is set to Dark Mode, Lightroom Classic displays a light title bar and light window chrome instead of matching the active system appearance.

This creates a visual inconsistency with native macOS applications and system UI behavior.

Lightroom Classic Version Number
15.3

OS Version Number
macOS Sequoia 26.4.1 (25E253)

Camera Model
Not applicable

Step-by-step Reproduction Instructions

1. Set macOS Appearance to Dark Mode.
2. Quit Lightroom Classic completely.
3. Launch Lightroom Classic 15.3.
4. Observe the application title bar and window chrome.

Expected Result
Lightroom Classic should render its title bar and window chrome using macOS Dark Mode styling when the system appearance is set to Dark Mode.

Actual Result
Lightroom Classic displays a light title bar and light window chrome while macOS is set to Dark Mode.

Accessibility Impact
The application does not respect the system appearance setting. This reduces UI consistency and may negatively affect users who rely on Dark Mode for readability, contrast preference, or visual comfort.