Header theme is no longer applied after updating packages

[Bergmam]

Hi,

I updated the following packages:

@cloudscape-design/components: 3.0.484 -> 3.0.718
@cloudscape-design/components-themeable: 3.0.500 -> 3.0.733

After doing so, the theming I had previously applied to the header visual context is now completely ignored.

Before updating packages:

After updating packages:

My theme:

contexts: {
    header: {
      tokens: {
        colorBackgroundLayoutMain: brandStyles.secondaryBrand90,
        colorBackgroundHomeHeader: brandStyles.secondaryBrand90,
        colorTextHeadingDefault: brandStyles.tertiaryBrand100,
        colorTextLinkDefault: brandStyles.primaryBrand80,
        colorTextBreadcrumbCurrent: brandStyles.secondaryBrand50,

        colorTextLinkButtonNormalDefault: brandStyles.primaryBrand80,
        colorBorderButtonNormalDefault: brandStyles.primaryBrand80,
        colorBackgroundButtonPrimaryDefault: brandStyles.primaryBrand100,

        colorBackgroundNotificationRed: brandStyles.utilityDanger100,
        colorBackgroundNotificationGreen: brandStyles.utilitySuccess100,
        colorBackgroundNotificationYellow: brandStyles.primaryBrand100,
        colorBackgroundNotificationBlue: brandStyles.primaryBrand100,
      },
    },
  }
}

The main issue is the colorBackgroundLayoutMain token of the header context which previously had a color applied to it, but after updating the packages it seems like it is just reverting back to the top-level design token which in my app is set to white (#FFFFFF). The font colours are also wrong.

Inspecting the header background with the wrong color gives this, and so it does not look like it is picking the token from the header visual context at all.

Context is applied correctly for alerts and flashbars.

Is this a bug or did some functionality change between the versions that I am unaware of?

[Bergmam]

After closer inspection, it looks like after updating the packages the parent element is missing the awsui-context-content-header class.

Before update:

After update:

[just-boris]

Thanks for the extra info, now we can tell what happened. The dark header feature was removed, therefore the theming for a non-existing feature is not supposed to work either.

Details here: #2235