A group of a kind the host registered (ChartKinds): what the kind's layout answers. The kind's painter reads data; nothing else does.
ChartKinds
data
The ids of the axes the group draws against; none for a kind that takes the plot alone.
Optional
The kind's own geometry, for its painter; JSON.
The kind's name, as registered (custom:<kind>).
custom:<kind>
The plot's inside, in px: where the kind drew.
A group of a kind the host registered (
ChartKinds): what the kind's layout answers. The kind's painter readsdata; nothing else does.