Purple netherite
The Netherite sword and pickaxe have something like boron on the particle effect. The handle of items such as a Netherite sword, pickaxe, shovel, axe, hoe is replaced with a purple stick instead of a stick. Netherite block and ancient relic turn purple
makes the appearance of armors more attractive. There is a purple string surrounding the Netherite nugget.
You can see it in more detail by downloading the texture pack.
example of netherite armor on player
Netherite block
ancient relic specimen