Ide theme color not getting set certain UI elements

[kenzieschmoll]

The lighter gray is getting passed in by the query parameters from the IDE, but it is not getting applied everywhere:



URL:

[elliette]

Also seeing this on the Network Panel:

[elliette]

Performance panel:

[elliette]

Investigating #8466, I've discovered why this happens:

• We do not set the colorScheme in the Theme we construct from the IDE background color, so any color properties we access on colorScheme will not be set to work with the IDE theme.
• Furthermore, DevToolsSharedColorScheme does not take into consideration the IDE theme:

  devtools/packages/devtools_app_shared/lib/src/ui/theme/theme.dart

  Line 343 in 3b73a65

  extension DevToolsSharedColorScheme on ColorScheme {