1 Even though the fixed-position element's container is nonscrollable, it should still be composited because one of its ancestors is scrolling.
8 "contentsOpaque": true,
22 "shouldFlattenTransform": false,
26 "shouldFlattenTransform": false
43 "position": [286, 286],
52 "position": [10, 100],
54 "contentsOpaque": true,
56 "backgroundColor": "#00FF00"