Update Dark Mode palette to match DXPR CMS defaults

[jjroelofs]

Linked issues

• Update Dark Mode palette to match DXPR CMS default dark palette #783

Solution

Updated the built-in Dark Mode color palette to match the monochrome dark palette used by DXPR CMS. The previous palette used colorful accents (blue #4675ff, green #10b981, amber #f59e0b) that didn't align with the actual dark theme deployed by DXPR CMS. The new palette uses a cohesive dark gray scheme with light text for better consistency.

Changed files

• features/sooper-colors/color-settings.json — palette definition
• scss/base/variables.scss — SCSS source
• css/base/variables.css — compiled CSS artifact

Checklist

• I have read the CONTRIBUTING.md document.
• My commit messages follow the contributing standards and style of this project.
• My code follows the coding standards and style of this project.
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Need to run update.php after code changes
• Requires a change to end-user documentation.
• Requires a change to developer documentation.
• Requires a change to QA tests.
• Requires a new QA test.
• I have updated the documentation accordingly.
• All new and existing tests passed.