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Test for WK104189: This test passes if there is a green square with sharp (not blurry) edges.<br/>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 10 10" width="400" height="400">
  <rect x="10%" y="10%" width="80%" height="80%" fill="green" />
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