Core: Add zoom level 8 and limit manual input to 800%

[ghengeveld]

What I did

Added zoom level 8 and dropped the max zoom to 800% so that limits are consistent between the preset levels (keyboard shortcuts) and the manual input. 800 was chosen because it's twice the current max zoom level (4).

Checklist for Contributors

Testing

The changes in this PR are covered in the following automated tests:

• stories
• unit tests
• integration tests
• end-to-end tests

Manual testing

Press Opt + to zoom in all the way to 800%. Open the zoom menu and confirm when you focus the input and press the up arrow, you can't go any higher.

Documentation

• Add or update documentation reflecting your changes
• If you are deprecating/removing a feature, make sure to update
  MIGRATION.MD

Checklist for Maintainers

• When this PR is ready for testing, make sure to add ci:normal, ci:merged or ci:daily GH label to it to run a specific set of sandboxes. The particular set of sandboxes can be found in code/lib/cli-storybook/src/sandbox-templates.ts

• Make sure this PR contains one of the labels below:

  Available labels

  • bug: Internal changes that fixes incorrect behavior.
  • maintenance: User-facing maintenance tasks.
  • dependencies: Upgrading (sometimes downgrading) dependencies.
  • build: Internal-facing build tooling & test updates. Will not show up in release changelog.
  • cleanup: Minor cleanup style change. Will not show up in release changelog.
  • documentation: Documentation only changes. Will not show up in release changelog.
  • feature request: Introducing a new feature.
  • BREAKING CHANGE: Changes that break compatibility in some way with current major version.
  • other: Changes that don't fit in the above categories.

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Summary by CodeRabbit

• New Features
  • Added an additional preset zoom level (8×) for finer preview magnification.
  • Reduced the maximum zoom percentage from 1000% to 800% for the preview tool.

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View your CI Pipeline Execution ↗ for commit 89836c7

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☁️ Nx Cloud last updated this comment at 2026-01-16 14:11:36 UTC

[coderabbitai]

📝 Walkthrough

Walkthrough

Added an 8× zoom level and lowered the Zoom percentage input max from 1000 to 800; updated the MaxZoom story to initialize with value 8. No changes to runtime API signatures in production code. (33 words)

Changes

Cohort / File(s)	Summary
Zoom tool code/core/src/manager/components/preview/tools/zoom.tsx	Added 8 to ZOOM_LEVELS; changed Zoom percentage input maxValue from 1000 to 800. No exported/public function signatures modified.
Story update code/core/src/manager/components/preview/tools/zoom.stories.tsx	Updated MaxZoom story args: value changed from 4 to 8 (story initialization only).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

✨ Finishing touches

• 📝 Generate docstrings

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• code/core/src/manager/components/preview/tools/zoom.stories.tsx

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🔇 Additional comments (1)

code/core/src/manager/components/preview/tools/zoom.stories.tsx (1)

72-75: Aligned MaxZoom story value with new preset.

Looks good.

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Package Benchmarks

^{Commit: 89836c7, ran on 16 January 2026 at 14:13:09 UTC}

The following packages have significant changes to their size or dependencies:

@storybook/cli

	Before	After	Difference
Dependency count	183	183	0
Self size	775 KB	775 KB	🚨 +55 B 🚨
Dependency size	67.38 MB	67.45 MB	🚨 +67 KB 🚨
Bundle Size Analyzer	Link	Link

@storybook/codemod

	Before	After	Difference
Dependency count	176	176	0
Self size	30 KB	30 KB	🎉 -4 B 🎉
Dependency size	65.95 MB	66.02 MB	🚨 +67 KB 🚨
Bundle Size Analyzer	Link	Link

[ndelangen]

@ghengeveld can you explain how this is capping the textfield input to 800%?

It's not clear to me, from the git diff, that that's being changed.

[ghengeveld]

Sorry, looks like I forgot to push 🤦