{
  "probe": "real Chromium wheel input over the 100px revealed part of a 500px bounded pane",
  "viewport": "900x520@1",
  "build": "0019e5c9b3a20dcec8c5e4ec891026bf7e154cb7",
  "before": {"paneScrollTop": 0, "dialogY": 44},
  "after": {"paneScrollTop": 180, "dialogY": -136},
  "controls": [
    {"xWithinPane": 25, "paneScrollTop": 180, "dialogY": -136},
    {"xWithinPane": 75, "paneScrollTop": 180, "dialogY": -136},
    {"xWithinPane": 150, "paneScrollTop": 0, "dialogY": 44},
    {"xWithinPane": 450, "paneScrollTop": 0, "dialogY": 44}
  ],
  "interpretation": "Wheel input over the revealed/scrim area scrolls the target pane; the absolute portal wrapper and Drawer move with its contents. Wheel input over the Drawer content is contained by the Drawer and does not move the pane."
}