The crafting helper UI doesn't show the recipe for dying shulker boxes.
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hi could not agree more 🙂 Firework rockets are now in the recipe book as of snapshot 20w45a. see message send by @unknown added a comment - 05/Nov/20 12:28 AM https://bugs.mojang.com/browse/MC-115229?focusedCommentId=834614&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-834614
Confirmed. Attached screenshot