P76（底部条/槽位药丸化 + 对话/交互面板半透明描边）证据分析 — 真实 Desktop xvfb 1280x720
近黑阈值 24（旧纯黑面板底色 (14,22,30) 口径）；实心块 = 24x24 全近黑。

p43-hud-day: hotbar=(405, 660, 470, 56) size=(470, 56) dark_frac=0.109 maxblk=94 bright=1804 | legend dark_frac=0.116 maxblk=176 bright=1275
p43-hud-night: hotbar=(405, 660, 470, 56) size=(470, 56) dark_frac=0.108 maxblk=94 bright=1683 | legend dark_frac=0.115 maxblk=176 bright=1196

p44-dialog-a: panel=(190, 558, 900, 138) dark_frac=0.013 maxblk=101 bright=2837

p67-target task-panel region=(16,470,380,220) dark_frac=0.003 maxblk=70 bright=378

diff p43-hud-day vs p43-hud-night: differing_pixels=921386
diff p44-dialog-a vs p44-dialog-b: differing_pixels=3978

verdict=PASS
  hotbar/legend/dialog/task regions have no solid near-black block;
  key chips, icons and action-name legend remain bright; frames differ pairwise.
