A test pattern was installed as a real app icon on each OS and captured. Below, that capture, what this page renders from the same pattern, and the difference (amplified 8 times). Error is in levels out of 255, per channel. Text is set in the browser, so it differs by rasteriser: its rows show how close.
| Scene | Place | Real capture | This page | Difference x8 | Mean | 99th pct | Max |
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