Internal/6000.4/staging

[claire-nicholson]

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• Read the Graphics repository & Yamato FAQ.

Checklist for PR maker

• Have you added a backport label (if needed)? For example, the need-backport-* label. After you backport the PR, the label changes to backported-*.
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• Have you added a graphic test for your PR (if needed)? When you add a new feature, or discover a bug that tests don't cover, please add a graphic test.

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Purpose of this PR

Why is this PR needed, what hard problem is it solving/fixing?

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Testing status

Describe what manual/automated tests were performed for this PR

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Comments to reviewers

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