third_party/blink/web_tests/css3/filters/effect-invert.html

<img style="filter: invert(0)" src="resources/reference.png">
<img style="filter: invert(0.2)" src="resources/reference.png">
<img style="filter: invert(0.4)" src="resources/reference.png">
<img style="filter: invert(0.6)" src="resources/reference.png">
<img style="filter: invert(0.8)" src="resources/reference.png">
<img style="filter: invert(1.0)" src="resources/reference.png">