The World of Color change log,
  • Added Glazed Terracotta blocks
  • Renamed Hardened Clay to Terracotta
  • Added Concrete Powder blocks
  • Added Concrete blocks
  • Updated base color palette
  • Added advancements
  • Added recipe book
  • Added Knowledge Book item
  • Added Parrots
  • Added functionality to save toolbars in creative mode
  • Added text-to-speech narrator
  • Added new sounds for the Note blocks
  • Added commands relating to recipes and advancements
  • Many minor fixes and changes
  • Removed Herobrine
Read more about the update here: https://minecraft.net/en-us/article/...color-released