I'm trying to use filter mixin this way in SCSS:
a {
@include filter(grayscale(100%));
}
But when I compile, I got this error:
Undefined mixin 'filter'.
I'm using the latest version of this Gem with Rails framework.
SASS Example
@import 'compass/css3/filter'
.filtered
@include filter(grayscale(50%))
@include filter(blur(2px))