fix: improve greeting illustration visibility in dark mode

[Chokkarapuwar-Sujal]

Description

Improves the visibility of the greeting illustration in dark mode.

The target rings in the animated greeting illustration used a very dark color that blended into the dark background. This change applies a dark-mode-specific class and updates only the affected SVG paths to a lighter color, while preserving the original illustration in light mode.

Fixes #816

Type of change

• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Tested the greeting illustration in light mode.
• Tested the greeting illustration in dark mode.
• Verified that the target rings are clearly visible in dark mode.
• Verified that light mode remains unchanged.

Screenshots

Before

After

Checklist

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• My changes generate no new warnings.
• The fix does not affect light mode.

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Project	Deployment	Actions	Updated (UTC)
developer-folio	Error		Jul 9, 2026 10:29pm