The bug
Unlike other commands only blocks (command block, structure block...), the light block name appears in white.
Linked issues
is duplicated by 1
relates to 6
MC-191338
Name color for Minecart with Command Block is incorrect
Resolved
MC-192591
Name color for Structure Void is incorrect
Resolved
MC-197324
Name colors for spawn eggs are incorrect
Open
MC-220694
Name color for knowledge book is incorrect
Resolved
MC-256901
Petrified oak slabs do not have the "Epic" rarity
Resolved
1 more links
Can confirm. Relates to MC-220694, MC-192591, MC-191338 and MC-197324.