Order Book
The BOOK widget shows a price ladder with columns labeled PRICE, SIZE, and TOTAL.
It also displays BID and ASK labels around the inside market line.
Reading the book¶
- PRICE: the level price shown in the ladder
- SIZE: the amount at that level (shown with k-style formatting in the UI)
- TOTAL: cumulative size shown per level
Update/latency indicators¶
The BOOK area shows timing indicators such as a seconds value (e.g., "6.0s") and a millisecond value (e.g., "4969ms").
