- Clipart library: new left-edge drawer (5px idle, expands on hover,
400px when open). User picks a local folder via the File System Access
API in settings; directory handle is persisted in IndexedDB so the
library survives reloads. Dragging a thumbnail onto the stage creates
an image asset + layer at the drop point.
- Animation paths on the stage: selecting a keyframe draws the tween
path from the previous keyframe to the selected one as a solid
polyline with per-frame draggable dots. All other segments on the
same position-track render as dashed ghost lines so the full curve
progression is visible.
- Path dots grow on hover (2.5 → 6 px), show a grab cursor, and have a
wider hit area so they're easier to grab.
- Bezier-curved position interpolation: keyframes gain optional
ctrlX/ctrlY fields. When set, x/y tween along a quadratic bezier
through the control point instead of a straight line. Dragging a
path dot solves for the control so the curve passes through the
drag point at its frame progress. Mirrored across all four render
pipelines.
- Tests: new suites for polygon actions, freeform drawing lifecycle,
polygon + stroke rendering (15 new tests). Fixed the mask-render
tests that relied on a default-transparent canvas background.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>