A graph keeps the paint and stroke weight given to a series' marks, but not
the opacity of their fill or stroke row. An opacity set with
`transparency.set {item}` or `appearance.setItem {opacity}` on a column,
bar, line or other series path was lost the next time the graph was drawn
(a data, type or option change).
- `SeriesPaint` gains `fillOpacity` and `strokeOpacity`. A setItem opacity
on the topmost fill or stroke of a series path stores it, in the same
undo step, and the generator puts it on the topmost fill and stroke of
every path directly in that series' group. Graph designs keep their own
opacity. A value read from a file is held to 0..1.
- The Appearance commands that change the opacity of a series path's
topmost fill or stroke (add, remove, duplicate and move a row, Clear
Appearance, Reduce to Basic Appearance, `appearance.transfer` and the
Eyedropper) update the stored opacity. They do not change the stored
paint, which only `paint.setFill` and `paint.setStroke` set.
- An edit that leaves a series path fully opaque stores nothing for a
series the graph keeps nothing for.
A stroke color given without strokeWidth left characters at weight 0, so
nothing was drawn. As paint.setStroke does, a painted stroke now gives a
run with no weight 1 pt, for the characters and for the label styles a
graph keeps; an explicit strokeWidth still sets the weight.
Commands whose `id` or `ids` the shared check in Session::execute does not
read still parsed them with id_param/ids_param, which drop anything that is
not a non-negative integer, and then acted on the selection or the current
layer. `object.blend.make {"ids": 3}` blended the selection,
`object.envelope.makeWithWarp {"ids": [2, "x"]}` warped the selection,
`graph.setData {"id": "2"}` changed the selected graph and
`layer.newSublayer {"parent": "2"}` added a sublayer to the current layer.
- cmd::named_ids and cmd::named_id read `ids`/`id` as targets does: a value
that is not an object id, or an unresolved step reference, is an error.
- The symbol and brush, Live Paint, Shape Builder and Image Trace, blend,
envelope and mesh, perspective, Liquify, Puppet Warp and graph helpers use
them in place of the lenient readers.
- layer.clippingMask.toggle checks `id`, and layer.newSublayer checks
`parent`, with checked_id before falling back to the highlighted row or the
current layer.
Dropping rows with neither a label nor a value read the data padded to
the widest row, so a dropped row wider than the rest (`,,`) left every
kept row one blank cell wider. The graph then had an extra blank series,
and a right-axis assignment to that index was kept. Each kept row now
keeps its own width. This applies to graph.setData and to a graph
variable's data set.
Choosing a data set gave a graph variable's CSV to the graph without the
two steps graph.setData takes after new data: rows with neither a label
nor a value were kept and drawn as empty slots, and a right-axis series
the new data no longer had stayed assigned, so a series added by a later
row started on the right axis. The data set now goes through the same
steps.
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