The Info Fragment is an item added by ChromatiCraft. It can be found scattered about the Minecraft world in various structures that spawn in the Overworld, Nether, and loot chests found in dungeons. As of the latest development update, 237 of them are needed to completely fill out the Chromic Lexicon. The Fragments can be stored in the Lexicon by shift right-clicking with the book in hand.
When collected, info fragments will automatically convert to the "filled out" form. These cannot be changed back to blank fragments, and only inserted into the Lexicon. If collected Fragments do not convert, then the player is missing the progression to fill out further fragments. Current Progression is displayed in the Progress tab of the Lexicon.