chart

How does a script know what kind of chart it runs on? On TradingView it reads chart.*. Here every chart is a standard bar or candle chart, so these values are the same on every run, and a script that checks them still runs as it should.

//@version=6
indicator("Doji, on real candles only", overlay = true)
// a Heikin Ashi bar's open isn't a traded price, so check the chart's type first
doji = chart.is_standard and math.abs(close - open) <= (high - low) * 0.1
plotshape(doji, "Doji", shape.cross, location.abovebar, color.gray)

For a drawing's anchor, see chart.point.

chart.bg_color

Pine v6

input color chart.bg_color

The chart's background colour, #0F1623.

It stays the same in every theme of the terminal, so it doesn't match a light theme's background.

chart.fg_color

Pine v6

input color chart.fg_color

The colour of the chart's text, #E2E8F0.

Like chart.bg_color, it stays the same in every theme, so text drawn in it is hard to read on a light theme.

chart.is_standard

Pine v6

simple bool chart.is_standard

Always true here: every chart is a standard bar or candle chart.

chart.is_*

No effect here

The other chart types: Heikin Ashi, Kagi, Line Break, Point & Figure, range and Renko. Each is always false here.

Each is a simple bool.

Name
chart.is_heikinashi
chart.is_kagi
chart.is_linebreak
chart.is_pnf
chart.is_range
chart.is_renko

chart.left_visible_bar_time

Pine v6No effect here

input int chart.left_visible_bar_time

Always 0 here, not the time of the leftmost bar in view. A test such as time >= chart.left_visible_bar_time holds on every bar.

chart.right_visible_bar_time

Pine v6No effect here

input int chart.right_visible_bar_time

Always 0 here, not the time of the rightmost bar in view.