Commands that need an object id read it with `id_param`, which returns
None for a value that is not a non-negative integer, so `{"id": "5"}` or
`{"id": -1}` was refused with "missing id". They now read it with
`object_param`, which refuses such a value with "`id` must be a whole
number", naming the key. This covers `document.node`, the `path.*` anchor
and handle commands, the `text.*` range and path commands, the mesh,
envelope and slice point commands, `layer.target`, `layer.move`,
`node.move`, `select.magicWand`, and the `source`, `target`, `group` and
`path` keys of `appearance.transfer`, `appearance.copyFrom`, the
`livePaint.*` commands and `text.createInPath`.
The optional `group` of `livePaint.fill` and `parent` of `node.move` are
refused the same way when given. Before, a malformed `parent` moved the
object to the top level and a malformed `group` fell back to the
selection.
Ruler guides were a list kept beside the layers. Each guide is now an
object of its layer or sublayer, always directly in it and above the
layer's art. These behave as on main:
- Guides draw on screen only. Exports (SVG, PDF, PNG, PSD), Fit All,
Select All, the art bounds, clicks and marquees, and a layer's
Pathfinder and Transform effects leave them out. The Layers panel
lists them as guide rows of their layer, the highest guide.list
index first.
- Deleting a layer deletes its guides, and merging layers keeps their
guides in the merged layer.
- The guide commands number guides as guide.list does, in the order
they were made.
New: each guide takes an id from the document's object ids. An object
command given a guide's id fails with an error, and node.move cannot
put a guide into a group or out of its layers. A guide made while an
opacity mask, a symbol or a pattern is edited moves to the top
visible, unlocked layer when editing ends.
File format: native files still save the guides in the document's
guides list, in every file version, so older builds read them. Each
entry may now also carry the guide's id, name, locked and hidden
flags; older builds ignore those fields. Opening a file puts each
saved guide on its layer (on the top visible, unlocked layer when the
file names none or a layer it does not have), and each saved guide
counts against the object limit for opening a file. A ruler guide node
that a file holds below a layer's art moves up to the layer's guides,
and one anywhere else (in a group or another object, beside the
layers, or in a symbol) is removed. Ruler guides read from an .ai file
become guide objects on the layer they were on, numbered in the order
the file lists them.
A compound path holds its members, so select.color passed over it and
looked at the members instead, whose paint inspect doesn't report: a
black compound path (art with holes, as PDFs bring in) never matched
"#000000". It now matches by its own fill and stroke, and its members
never do. Type without characters reads as the default character fill,
as inspect reports it (CodeRabbit on #2939).
dotCooCoo