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# ClipOut is anchored to the snapped element by insetting a "snap outset" equal
# to the spread. If that outset is quantized (the original fix stored it as Au,
# 1/60px), the reconstructed element edge shifts by up to half an app unit. When
# an element edge lands exactly on a device-pixel tie (x.5), that shift flips the
# rounding to the opposite pixel on the min (top/left) edges, leaving those sides
# of the ring a pixel thin while the max (right/bottom) edges stay correct.
#
# Here every element edge is on an x.5 tie and the spread (1.875) is a half app
# unit, so the Au bug makes the top and left of the ring thin. The == reference
# places the element at the rounded (integer) position it snaps to: with the
# outset kept at exact f32 precision both render an identical uniform ring; with
# the Au-quantized outset only this file's top/left go thin, so the two differ.
root:
items:
- type: stacking-context
bounds: [0, 0, 250, 250]
items:
- type: rect
bounds: [0, 0, 250, 250]
color: [255, 255, 255]
- type: box-shadow
bounds: [20.5, 20.5, 200, 200]
color: [0, 0, 0, 1]
clip-mode: inset
offset: [0, 0]
blur-radius: 0
spread-radius: 1.875