Manage visual attribute precedence (colour, size, shape) for GeomEdgeSpace
objects.
StatEdgeSpaceA ggproto object.
Explicit aes() mappings.
Fixed geom_edgespace() arguments.
Original graph attributes (via optional_aes).
During the setup_data stage, the Stat invokes internal functions
to resolve value priority:
Explicit Mapping: Values defined by the user inside aes().
Fixed Parameters: Constant values passed as arguments in the geom_edgespace() call.
Graph Attributes: Original attributes stored within the GraphSpace object, retrieved from the data columns.
geom_edgespace