The image editor canvas only used part of the viewport, and the right sidebar was a fixed width that could clip its controls on shorter screens.
- Canvas: the canvas container used `flex-1`, but its parent wrapper in editor-page.tsx was not a flex container, so it collapsed to the Konva Stage's content height (~600px), leaving a large inert region below. Make the wrapper a flex container so the canvas fills the available area.
- Rulers: ruler background/ticks were set via `ctx.fillStyle = "var(--color-card)"`, which canvas 2D cannot parse, so the default black fill remained and painted the rulers as solid black bars. Resolve the theme tokens to concrete colors from computed style at draw time (theme-aware).
- Right panel: add a left-edge drag handle to resize the panel (240-480px, persisted to localStorage) and `min-h-0` so the tab content scrolls internally instead of pushing the color controls off-screen.
Adds editor-layout.spec.ts (canvas-fill + resize) and a ruler-not-black regression test. All 7 targeted editor e2e tests pass.
Canvas rendering:
- Fix Konva filter application order (filters before cache)
- Implement 6 missing filters (motionBlur, radialBlur, surfaceBlur, vignette, grain, sharpen)
- Implement exposure, vibrance, warmth adjustments as custom Konva filters
- Apply layer blend modes via globalCompositeOperation
- Apply object effects (drop shadow, outer glow, stroke) to all shapes
- Mount SmartGuidesOverlay during move tool drag
- Clip pixel grid to visible viewport (200-line cap for performance)
Store logic:
- resizeImage now scales all objects proportionally (points, radii, fontSize)
- rotate/flip/trim handle line/arrow points arrays and center-based objects
- applyCrop creates cropped source image via offscreen canvas
- invertSelection creates mask from bounds when no mask exists
- cutObjects uses single atomic set() to prevent race conditions
- sendToBack respects layer ordering in multi-layer documents
- Add batchNudge() and commitHistory() for undoable nudge operations
- Add updateLayerThumbnail() method
Tool hooks:
- Fix clone stamp/dodge/burn perf (toDataURL only on mouseUp, not every move)
- Fix magic wand zoom/pixelRatio with explicit stage.toCanvas() viewport
- Fix eyedropper sampling with unzoomed canvas export
- Fix selection tool stale closure via isDrawingRef
- Implement polygonal lasso (click-to-place vertices, double-click to close)
- Implement selection subtract mode (geometric and mask-based)
- Implement gradient live preview during drag
- Fix transform/move tool to persist changes and handle ellipse/polygon/star
UI wiring:
- Mount rulers and guidelines in editor page
- Wire histogram with live canvas imageData
- Wire autosave recovery with blob-to-dataURL conversion
- Wire fill dialog to Shift+Backspace shortcut
- Wire eyedropper and transform options to options bar
- Fix history panel undo/redo button reactive state via useSyncExternalStore
- Fix layer row name click to select layer (timer-based click/dblclick)
- Fix zoom animation coordinate drift with progressive store sync
- Fix copy merged to use Konva stage composite export
Tests:
- 49 new unit tests (store fixes + konva filters)
- 8 new E2E test files with 39 test cases
SnapOtter