src/third_party/WebKit/LayoutTests/css3/filters/effect-brightness.html

   1 <img style="-webkit-filter: brightness(-1)" src="resources/reference.png">
   2 <img style="-webkit-filter: brightness(-0.6)" src="resources/reference.png">
   3 <img style="-webkit-filter: brightness(-0.3)" src="resources/reference.png">
   4 <img style="-webkit-filter: brightness()" src="resources/reference.png">
   5 <img style="-webkit-filter: brightness(0.3)" src="resources/reference.png">
   6 <img style="-webkit-filter: brightness(0.6)" src="resources/reference.png">
   7 <img style="-webkit-filter: brightness(1)" src="resources/reference.png">