The bug
All user-facing strings are JSON text components, except custom_name in the potion_contents data component. This makes it impossible to give text formatting, colors, and use other text types than the hardcoded
{"translate":"item.<namespace>.<id>.effect.<value>"} without using the custom_name data component. Using that has side effects like being able to be removed in anvils, and showing in item frames.
Effects
It's impossible to give a potion which grants effects with a custom name that cannot be removed in an anvil, nor shows in a map, that is:
formatted
colored
different text types (
text,keybind) (including resolved JSON text components ofnbt,selectorandscore)a translation string of a different origin (such as using
item.minecraft.stick)
The effects can also be resolved by making item_name used if neither custom_name nor potion are set, but that would not resolve the inconsistency of custom_name.
Comments 3
/give @s potion[potion_contents={custom_name:"test",custom_effects:[{id:strength,duration:20}]}]
/give @s potion[potion_contents={custom_effects:[{id:strength,duration:20}]},item_name='"test"']First command results in an item named "item.minecraft.potion.effect.test", second one "Uncraftable Potion"; the only way to name a potion with effects "test" is this:
/give @s potion[potion_contents={custom_effects:[{id:strength,duration:20}]},custom_name='{"text":"test","italics":false}']But that name can be removed by an anvil, and shows in item frames.
These commands highlight the inability to change text type, but you also can't give formatting nor color.
Thank you for your report!
After consideration, the issue is being closed as Invalid.
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