In a clip group or a clipping layer the bottom child is the clipping path.
Object › Arrange moved the selected children with no regard for that slot:
Send to Back (and Send Backward from just above it) put the art under the
clipping path, so the art became the clipping path, lost its role as art,
and the group drew nothing. Bring Forward / to Front on the clipping path
itself would likewise have made art the clip. Layers-panel moves already
keep the clipping path at the bottom (layer.rs, `index.max(1)`); arrange
didn't.
- object.rs `arrange`: in a parent that clips, the clipping path is left
where it is and the art is arranged within the slots above it (Back goes
to just above the clipping path, Backward stops there).
- tests: Back, Backward, several objects, and Forward/Front on the
clipping path in a clip group (with a render check); Send to Back in a
clipping layer.
Art in a sublayer is now selected as objects (clicks, marquee, Select All, the
Select menu), sublayers select in their own colour, and hidden, locked or
template sublayers block clicks. Layer Options gain Preview (per-layer outline)
and Dim Images. New and fixed layer.* commands for the Layers panel: setCurrent
and highlight (rows at any depth), selectAll, move (reparent with cycle and
nesting checks, Alt copies), delete/duplicate rows, merge, flatten, collect,
release to layers, reverse, template, hide/outline/lock others and their
show/preview/unlock all, locate.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
layer.clippingMask.toggle {id?} -> {clip}: the top object of the current
layer (or of the one selected group, or of `id`) becomes the clipping path,
unpainted and moved to the bottom so art added later is clipped too; pressing
the button again releases the mask and leaves the path unpainted. One undo
step. The Layers panel button runs it and underlines clipping-path names.
Model: NodeKind::Layer.clip (skipped when false). Clipped layers render, hit
test, bound, and export to SVG and PDF like clip groups (Node::clips /
set_clips); the clip-path helpers are shared with Make/Release Clipping Mask.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>