The chart types a primary series can be: every registered renderer that
declares itself a price series, then every transform the chart can apply
(Heikin Ashi to Kagi, once the transform tier is imported), which the chart
derives from the bars rather than drawing them as they come. Point and
figure and Kagi are both a renderer and a transform, and are listed once,
with the transforms. A volume histogram is registered too and would draw,
but it is not a chart type anyone picks for the instrument.
The chart types a primary series can be: every registered renderer that declares itself a price series, then every transform the chart can apply (Heikin Ashi to Kagi, once the transform tier is imported), which the chart derives from the bars rather than drawing them as they come. Point and figure and Kagi are both a renderer and a transform, and are listed once, with the transforms. A volume histogram is registered too and would draw, but it is not a chart type anyone picks for the instrument.