<!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!DOCTYPE html> <html lang="en"> <meta charset="utf-8"> <title>Bug 1577566: The alpha channel should be clamped at the right time so that it doesn't bright colors.</title> <style> #box { width: 100px; height: 100px; background-color: black; filter: url(#filter); } </style> <div id="box"></div> <svg height="0"> <defs> <filter id="filter" color-interpolation-filters="sRGB"> <feColorMatrix type="matrix" values="0 0 0 0 0 0 0 0 0 0.8 0 0 0 0 0 0 0 0 2 0"/> </filter> </defs> </svg>