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@dbspoudel Heads up that there are some failures here.

@justinmc all checks have passed. Requesting for review.

@Piinks Thanks for the suggestion! I've updated the message as recommended. Let me know if any further tweaks are needed. 🚀
cc @loic-sharma

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Changes reported for pull request #163917 at sha 0f211f0

@dbspoudel Can this be an assertion on BoxDecoration's constructor instead?