The bug
When an Ominous Banner is renamed with an anvil, it loses its rarity color. The other items with rarity color can be renamed without losing it.
How to reproduce
[media]
Generate a Pillager Outpost
/place structure minecraft:pillager_outpostTake an Ominous Banner from the structure
Rename it in an anvil
❌ See if it kept its rarity color after renaming itGet another item with rarity color (e.g. golden apple) and repeat step 3
Linked issues
is caused by 1
relates to 3
MC-123804
Explorer map and Ominous banner names appear in item frames, draw in italics, and can be removed with an anvil
Resolved
MC-132199
Items with rarity values will not display their rarity colors / show as italic when renamed and put in an item frame
Open
MC-269687
Most components of banners not saved when placed/broken
Resolved
Attachments
Comments 4
Relates to MC-123804.
Is caused by MC-274657
This is likely due to it being a custom name color rather than a true rarity color. An easy fix for this would be to split off ominous banners into their own ID (which would fix many other things), and create a proper "Ominous" rarity which applies to them.