Replace unmaintained color-thief-react with use-color-thief

[Copilot]

color-thief-react hasn't been updated since 2020. Migrated to use-color-thief (v1.3.2), an actively maintained fork using React hooks.

Changes

• Dependency: color-thief-react@2.1.0 → use-color-thief@1.3.2
• SplitViewer component: Refactored from render prop pattern to hook-based API
• Test mocks: Updated to return hook result object instead of render prop component

API Migration

Before:

<Color src={imageUrl} format="rgbString">
  {({ data: colour }) => (
    <style>{`background: ${colour}`}</style>
  )}
</Color>

After:

const { color } = useColorThief(imageUrl, { format: 'rgb' })
const colourString = color ? `rgb(${color[0]}, ${color[1]}, ${color[2]})` : undefined

{colourString && <style>{`background: ${colourString}`}</style>}

Side Effects

• Resolved 7 npm security vulnerabilities in dependency chain

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• downloads.snyk.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node wrapper_dist/bootstrap.js exec (dns block)
• o30291.ingest.sentry.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node wrapper_dist/bootstrap.js exec (dns block)
• static.snyk.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node wrapper_dist/bootstrap.js exec (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

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Project	Deployment	Actions	Updated (UTC)
history	Ready	Preview, Comment	Feb 9, 2026 0:01am