chart variables

Language version: 2 · Reference version: 2.7 · Date: 2026-10-25 · Compiler build: df7b3b14 · Namespace: chart · Entries: 10

`chart` (library)

Definition Values that describe the chart the script is drawn on: its colours (chart.bg_color and chart.fg_color) and its type (chart.is_standard, chart.is_heikinashi, chart.is_renko and the other chart.is_* values). Example

//@lipi=2
indicator("chart Library Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_standard ? "Standard chart" : "Synthetic bars", color=chart.bg_color, textcolor=chart.fg_color)
}

`chart.bg_color` (variable)

Definition The background colour of the chart the script is drawn on, as set by the reader. Type input color Example

//@lipi=2
indicator("chart.bg_color Example", overlay=true)
if barstate.islast {
    // A label that blends in with the chart background, with contrasting text
    label.new(bar_index, high, text="Close", color=chart.bg_color, textcolor=chart.fg_color)
}

`chart.fg_color` (variable)

Definition A foreground colour that contrasts with the chart’s background, for text and lines that must stay readable on both light and dark charts. Type input color Example

//@lipi=2
indicator("chart.fg_color Example", overlay=true)
plot(talib.sma(close, 20), title="SMA", color=chart.fg_color)

`chart.is_heikinashi` (variable)

Definition True when the chart type is Heikin Ashi. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_heikinashi Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_heikinashi ? "heikinashi chart" : "Another chart type")
}

`chart.is_kagi` (variable)

Definition True when the chart type is Kagi. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_kagi Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_kagi ? "kagi chart" : "Another chart type")
}

`chart.is_linebreak` (variable)

Definition True when the chart type is Line Break. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_linebreak Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_linebreak ? "linebreak chart" : "Another chart type")
}

`chart.is_pnf` (variable)

Definition True when the chart type is Point & Figure. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_pnf Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_pnf ? "pnf chart" : "Another chart type")
}

`chart.is_range` (variable)

Definition True when the chart type is Range. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_range Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_range ? "range chart" : "Another chart type")
}

`chart.is_renko` (variable)

Definition True when the chart type is Renko. Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_renko Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_renko ? "renko chart" : "Another chart type")
}

`chart.is_standard` (variable)

Definition True when the chart type is a standard chart type (candles, bars, line or area). Charts built from synthetic bars do not show the instrument’s real open, high, low and close, so a script can use this to warn the reader or to adjust its calculations. Type simple bool Example

//@lipi=2
indicator("chart.is_standard Example", overlay=true)
if barstate.islast {
    label.new(bar_index, high, text=chart.is_standard ? "standard chart" : "Another chart type")
}

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Reference

`chart` (library)

`chart.bg_color` (variable)

`chart.fg_color` (variable)

`chart.is_heikinashi` (variable)

`chart.is_kagi` (variable)

`chart.is_linebreak` (variable)

`chart.is_pnf` (variable)

`chart.is_range` (variable)

`chart.is_renko` (variable)

`chart.is_standard` (variable)

​chart (library)

​chart.bg_color (variable)

​chart.fg_color (variable)

​chart.is_heikinashi (variable)

​chart.is_kagi (variable)

​chart.is_linebreak (variable)

​chart.is_pnf (variable)

​chart.is_range (variable)

​chart.is_renko (variable)

​chart.is_standard (variable)

`chart` (library)

`chart.bg_color` (variable)

`chart.fg_color` (variable)

`chart.is_heikinashi` (variable)

`chart.is_kagi` (variable)

`chart.is_linebreak` (variable)

`chart.is_pnf` (variable)

`chart.is_range` (variable)

`chart.is_renko` (variable)

`chart.is_standard` (variable)