Kagi charts change direction when the price reverses by the specified amount or more.
The chart continues to move in this direction until the price of the specified value reverses to the other side.
When the price rises above the previous Kagi high, the line becomes thick (or green), and when the price falls below the previous Kagi low, the line becomes thin (or red). The line remains thick or thin until the opposite signal appears.
Changes in direction, changes in line thickness, and other patterns can generate buy and sell signals.