Found while testing crates/engine/src/cmd/patternlib.rs:99 (existing_pattern)
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
swatch.library.add looks for the library's pattern among the document's
patterns of that name or a numbered copy of it, instead of importing it
into a copy of the document. Only a swatch that paints with the pattern
unmoved counts as the pattern's swatch, so a swatch whose pattern was
moved in its space is not reused and applied in its place.
Window › Swatch Libraries and the Swatches panel's library menu get a
Patterns submenu with Geometric Patterns, a built-in library of eleven
black pattern swatches drawn in code (dots, stripes, a checkerboard, a
grid, diamonds, triangles, crosses and a zigzag).
- Clicking a pattern in its library panel adds the pattern and its
swatch to the document and applies it to the active fill or stroke
(Alt: the other one), as one undo step. A second click reuses the
swatch; a different pattern under the same name keeps its name and
the library's pattern comes in numbered.
- swatch.library.list lists the pattern libraries after the gradient
libraries (category "patterns"), and swatch.library.add brings a
pattern swatch's pattern as pasting art painted with it does.
- The library panel draws each pattern tile from the library's pattern.
- "Geometric Patterns" is translated in every catalog.
