Experience Bottles produce pink particles, since that's the default 'uncraftable potion' particle colour now. For the XP bottle, this looks very strange, blue or green would be more suitable.
MC-107166
Experience bottles produce pink particles.
Resolved
Fixed
9
Confirmed
color, experience_bottle, particles, potion
Minecraft 16w38a
Minecraft 16w39a
Retrieved
Can confirm. I suggest making the particles green-yellow, or something.