Web Editor Editing

Web editor · Step 2: Edit

A full pixel editor operating directly in map-color space. Every color you can pick is a color a map can display, so nothing here can break in-game.

This page is the tour; the complete tool-by-tool and key-by-key reference lives at Editor Tools & Shortcuts.

The layout

• Left toolbar holds the five tools: Brush, Fill, rect Select, Lasso, magic Wand, plus tool options (brush radius/shape, OKLab tolerance for fill/wand) and the selection operations (grow/shrink/invert, copy/cut/paste).
• Left panels are where the batch operations live. Requantize (R) re-runs the entire quantization pipeline on the current pixels or the original source image, with preview-then-commit; Filter (P) offers smooth/median/sharpen/posterize; Reduce (K) strips one color at a time by strategy; Color Merge commits the palette panel's merge queue.
• Right palette panel lists every color with live pixel counts across four tabs (all / frame / selection / total), sortable by hue, lightness, chroma, or frequency. Ctrl+click swatches to queue merges, the fastest way to clean up a noisy palette before budget trouble starts.
• Status bar shows cursor position (grid + tile-local), hovered color, distinct-color count (turns amber past 120, red past 180, a compression early-warning), zoom, and frame position.
• Stats panel (right edge) shows per-tile byte usage, and for imported art a Palette match score measured against the actual quantized output across all animation frames (computed inside the quantize workers at import, so it's free).

Three overlays worth knowing

• H is the rarity heatmap: red pixels use rare colors (cheap to merge away).
• Z is the compression detail map: bright regions are where your bytes go.
• M is the adaptive dither-strength mask from import, viewable and paintable.

Working across tiles

The ⊞ Grid toggle (step bar) switches between single-tile editing and the whole composition as one canvas, so brush strokes, fills, and selections run straight across tile boundaries.

Animation

Animated compositions get the frame strip: scrubbing, playback (Space), per-frame delays (10–10,000 ms), clone/blank/delete/reorder, and stride/skip thinning. Details in Editor Tools and the animation guide.

Editing in full color (sRGB)

Compositions imported in Full color (sRGB) mode edit the same way, on real RGB pixels. All five tools plus copy/paste, frame operations, and filters work unchanged, and fill/wand tolerance is still an OKLab distance, computed from the actual colors. A color panel (hue slider, saturation/value square, hex and R/G/B inputs, recent colors) replaces the palette panel, and the palette-only features are hidden: dithering, Requantize, Reduce, Color Merge, the dither brush mask, and the rarity heatmap. Sessions save as usual and older saved sessions load unchanged.

Undo and persistence

Full-history undo (Ctrl+Z, 20 levels of complete frame snapshots), and the whole session (source image included) auto-saves to the browser continuously. Close the tab mid-edit and the import page's session history brings it all back.

→ Step 3: Export