Apply review fixes

- crates/ui-egui/src/dialogs.rs
- docs/target-app-parity.md

crates/ui-egui/src/dialogs.rs

@@ -1005,13 +1005,14 @@ fn selected_frame_options(app: &DesignApp) -> Option<designcraft_doc::TextFrameO
     st.doc.item(fid)?.text_frame().map(|t| t.options.clone())
 }
 
-/// Whether the selected text frame (the first selected item, or the frame of the caret) has an
+/// Whether every selected text frame (the selected items, or the frame of the caret) has an
 /// outline that is not its own axis-aligned rectangle: an oval, a polygon, rounded or other corner
 /// options. Its text keeps one inset from the outline, as compose sets it; type on a path doesn't.
+/// A selection that mixes them with rectangular frames shows the four sides, so each frame keeps
+/// the sides left as shown.
 fn selected_frame_is_shaped(app: &DesignApp) -> bool {
-    let shaped = || {
-        let st = app.session.active()?;
-        let fid = st.selection.items.first().copied().or_else(|| st.selection.text.and_then(|t| t.frame))?;
+    let Some(st) = app.session.active() else { return false };
+    let shaped = |fid: designcraft_doc::ItemId| -> Option<bool> {
         let item = st.doc.item(fid)?;
         if item.text_frame()?.options.path.is_some() {
             return Some(false);
@@ -1019,7 +1020,11 @@ fn selected_frame_is_shaped(app: &DesignApp) -> bool {
         let bp = if item.corners.is_none() { item.path.to_bezpath() } else { designcraft_geom::corners::apply(&item.path, &item.corners) };
         Some(designcraft_compose::FrameOutline::new(&bp, 0.0).is_some())
     };
-    shaped().unwrap_or(false)
+    if st.selection.items.is_empty() {
+        let Some(fid) = st.selection.text.and_then(|t| t.frame) else { return false };
+        return shaped(fid).unwrap_or(false);
+    }
+    st.selection.items.iter().all(|&fid| shaped(fid).unwrap_or(false))
 }
 
 /// Object › Text Frame Options shows the selected frame's options. `_shown` keeps what it showed,

docs/target-app-parity.md

@@ -352,7 +352,7 @@ It is evidence of breadth: each item exists. It is not a claim of InDesign-level
 - Auto-size (Text Frame Options › Auto-Size, `object.textFrameOptions {autoSize: off|heightOnly|widthOnly|heightAndWidth|heightAndWidthProportionally, autoSizeReference, useMinimumHeight, minimumHeight, useMinimumWidth, minimumWidth, noLineBreaks}`): the frame fits its text exactly after every edit (typing, pasting, style changes, option changes) in the same undo step (opening a file keeps the frame sizes it gives); it grows and shrinks around the reference point, which stays put in spread space for rotated frames too, never below the minimum height/width and never past 10,000 pt. Width Only and No Line Breaks set each paragraph on one line; Height and Width without No Line Breaks keeps the width; Keep Proportions scales both sides until the text fits. IDML keeps all the options (`AutoSizing…`, `…ForAutoSizing` attributes). Not covered: frames of a thread other than the last, vertical frames, type on a path, and multi-column balancing in Keep Proportions.
 - Balance Columns (Text Frame Options › Balance Columns, `object.textFrameOptions {balanceColumns}`, IDML `VerticalBalanceColumns`): in the frame the story ends in, the columns after the last explicit column break fill to about the same depth (the last may be shorter by a line per column); keep options hold, spanning and split paragraphs keep their own balancing, vertical justification then applies to each column as usual, and vertical frames balance their bands. A frame the text runs on from, or that is overset, fills normally.
 - Text Frame Options dialog, laid out as InDesign's (General, Column Rules, Baseline Options, Auto-Size; framed Columns, Inset Spacing and Vertical Justification groups with spinner fields; Fixed Number shows each column's width as the fields change). Preview shows the edits on the page until OK (one undo step) or Cancel. An invalid value (such as a gutter that isn't a measure) takes the preview off the page, so the frame shows as it was, and the dialog's status line gives the reason; OK refuses the value too. Preview stays checked and shows the edits again once the value is valid. Vertical Justification › Paragraph Spacing Limit (`object.textFrameOptions {paragraphSpacingLimit}`, IDML `VerticalThreshold`): with Justify, the extra space goes between paragraphs up to the limit, the rest between lines.
-- Text Frame Options › Inset Spacing for a non-rectangular frame (an oval, a polygon, a frame with corner options): Top, Left, Bottom, Right and the link are dimmed, and one Inset field sets the distance kept between the text and the frame's outline (`object.textFrameOptions {inset: <number>}`, all four sides).
+- Text Frame Options › Inset Spacing for a non-rectangular frame (an oval, a polygon, a frame with corner options; when every selected text frame is one, a mixed selection keeps the four sides): Top, Left, Bottom, Right and the link are dimmed, and one Inset field sets the distance kept between the text and the frame's outline (`object.textFrameOptions {inset: <number>}`, all four sides).
 - Place a page of an IDML or DesignCraft document (`file.place {layoutPage}`): its objects, stories, styles and swatches as one group (INDD files are not readable).
 - Articles panel (`article.new/add/remove/options/delete/list`): reading order and content of EPUB and HTML exports.
 - Object ▸ Clipping Path (`object.clippingPath {type: alpha|edges, threshold, tolerance}`): traces the placed image and makes the outline the frame. Clipping paths saved in IDML (Detect Edges, Alpha Channel, Photoshop Path, User-Modified Path; Invert) hide the image outside the path on screen and in PDF and survive IDML export; `object.clippingPathOptions` reports, inverts or removes one (Object ▸ Clipping Path ▸ None).