Update customizer color values and colorScheme assignments

[noisysocks]

Asana Task/Github Issue: https://app.asana.com/1/137249556945/project/1201048563534612/task/1211322642800709?focus=true

Description

Separately to #1957 we should consider tweaking the New Tab Page’s default background colours:

• Switch some of the darker default background colours from using a dark theme to using a light theme.
• Switch the black colour from #000000 to #111111.

Note this isn’t gated and that any user who had previously selected #000000 will have their new tab page change to #111111.

Testing Steps

https://deploy-preview-1958--content-scope-scripts.netlify.app/build/pages/new-tab/?omnibar=true

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-1959
• Commit Hash: 8fb94d343a2d56c257df88cc2ee007dc87d2adb2
• Last Updated: September 11, 2025 at 5:56:31 AM UTC
• Install Command: npm i github:duckduckgo/content-scope-scripts#8fb94d343a2d56c257df88cc2ee007dc87d2adb2

Please use the above install command to update to the latest version.

[github-actions]

[Beta] Generated file diff

Time updated: Thu, 11 Sep 2025 05:56:47 GMT

Apple

    - apple/pages/new-tab/dist/index.js

File has changed

Integration

    - integration/pages/new-tab/dist/index.js

File has changed

Windows

    - windows/pages/new-tab/dist/index.js

File has changed