Description

ICON/dropped items in animations don't get parsed.

How to reproduce

Make an new anmiation called test.txt and add
speed: 0.2
ICON: DIAMOND_SWORD
ICON: IRON_SWORD

then use
{animation: test.txt}
the ICON's won't get parsed as actual items.

Platform

• Server version (output of /version):
  This server is running Paper version git-Paper-564 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)

• Holographic Displays version (check with /hd):
  v2.4.6

• ProtocolLib version, if installed (check with /protocol version):
  ProtocolLib version 4.6.1-SNAPSHOT-b498

• Do you use plugins to allow players to join with multiple Minecraft versions (such as ViaVersion, ProtocolSupport, ...):
  Nope

This is not a bug, animations are placeholders, and placeholders only contain text.