Apple putting the bright in brightness
While working on an HTML5 application I decided to get fancy and use the webkit brightness effect. This worked great in chrome and even firefox but when testing in Safari something wasn't quite right. Apparently apple decided to implement the brightness function in a little different than the W3C specification. In Safari brightness is a scale -1 0 +1 where 0 is normal and -1 is completely black, the spec calls for 0 as black and 1 to be normal which.
-webkit-filter: brightness(0);
