Render the map on a single viewport-sized canvas with a camera transform at
devicePixelRatio (image, fog, drawings, overlay) and draw the grid as crisp 1px
device-space lines — instead of CSS-scaling a natural-resolution bitmap, which
blurred the grid/fog/text at any zoom. Tokens now position in screen space so
their labels stay sharp too. Add live tool feedback via a 'hover' phase: polygon
shows its outline + vertices + rubber-band + fill preview, the brush shows its
footprint, and circle/square AoE preview under the cursor.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
NilsBriggen
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