Module candles 

The candlestick chart of market ohlc (mockup approved 2026-10-26).

One column per candle, newest on the right, sized to the terminal (or the TUI pane). Each row holds two price steps: a body is drawn with half blocks (▀ ▄ █), a wick with thin lines (│ ╵ ╷). Up candles (close ≥ open) are green, down candles red. A price axis on the left and a time axis under the candles. Pure: no I/O.

Structs

Summary

What the candles of a window add up to.

Constants

CHART_ROWS

Rows of the chart (each two price steps).

MIN_COLUMNS

Fewest candles the chart is drawn for.

Functions

axis_cols

The width of the price axis labels for candles between low and high.

chart

The chart of candles (oldest first) in rows rows, one column per candle, each line starting with the price axis. time formats a candle’s open time (ms) for the time axis.

columns_for

The candle columns that fit in width terminal columns, after the rail (│ ) and the price axis.

summary

The summary of candles (oldest first), or None when there are none.