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https://github.com/Matysh/houseplan-card
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Claudeandclaude[bot]
ced9b41642
The "Follows the sun" background made the plan crawl in Firefox: 23 MB of textures per frame, sixteen of about twenty picture-cache tiles thrown away every frame, nine frames per second. The card's own JavaScript was idle for 89 % of that. The cost is the outer outline. It is a triple drop-shadow over the grouped paper footprint, and although the group holds paper silhouettes only and never changes on hover or pan, the filter lived in the plan's own layer — so every repaint of the plan re-ran three blur passes over the whole sheet. One hint moves the filtered paper into its own layer and unhooks it from the plan's repaints. Measured on a demo-stand pan (Chromium, CDP, summed RasterTask): 1456.6 ms against a static background's 96.7 ms before, 84.7 ms against 103.2 ms after. The new smoke measures that ratio and fails above two. The picture does not change: the outline outside the plan matches byte for byte and the frame's mean colour moves from 176.59 to 176.66 of 255. Splitting the layer does move the remaining content onto a different sub-pixel grid, so the diagonal wall hatch anti-aliases differently and the four day-cycle baselines are re-taken on the beta candidate. Issue: #532 User-Visible: yes