How does the “Ladder” order book view work, and how are large levels highlighted?

Question

Accepted Answer

“Ladder” splits the order book into rows by price: each row has its own price and a volume shown as a bar and a number. The row size (1, 2, 4, 10 ticks and so on) is chosen automatically to fit the scale. “Highlight large” marks a row that reaches the set share of the largest row on screen: Off, 25%, 50% or 75%; the default is 50%.