• VS Code Version: 1.97.0-insider
• OS Version: PWA (Mac OS, but should apply to all)

Steps to Reproduce:

1. Set the colour titleBar.inactiveBackground to something significantly different to the activeBackground to easily distinguish the focused app.
2. Focus on any other app.

Notice that even when the PWA is inactive, it still takes the theme-color from the active titlebar background.

https://github.com/microsoft/vscode/blob/main/src/vs/workbench/browser/style.ts#L27-L41

I think that ideally the theme-color would match the titlebar colour, regardless of whether the app is active or not.