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vectorcraft/crates/trace
dotCooCoo 63dab14ee7 Image Trace: Abutting traces draw seam fills under their paths
An Abutting trace with Fills now holds a "Seam Fills" group under its
paths. For each color it has one stroke, 1.5 image pixels wide, along
the edges where a filled path of that color meets a filled path drawn
after it, in that color. A renderer that anti-aliases each path on its
own no longer shows a light hairline along those edges. The traced
paths and their shared edges do not change, and edges against the
image's border, a transparent area or a color left out get no stroke.

- vectorcraft-trace: `seam_fills` finds the segments two filled paths
  share and strokes them in the lower path's color (one stroke per
  gradient path). Overlapping, traces without Fills and Flat Logo get
  none.
- Image Trace commands: the group comes under every path (right above
  the hidden image in a live trace). Expand keeps it, Expand by color
  leaves it under the color groups, and a trace whose paths have more
  than half of the anchor limit gets no seam fills.

Docs: docs/mcp.md, the params text, docs/target-app-parity.md.
2026-11-14 23:15:50 -08:00
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