nl_tokens: Compile SASS to CSS .
pl_tokens: function compileSass ( _path , ext , <mask> , callback ) { const compiledCss = sass . renderSync ( { data : data , outputStyle : 'expanded' , importer : function ( url , prev , done ) { if ( url . startsWith ( '~' ) ) { const newUrl = path . join ( __dirname , 'node_modules' , url . substr ( 1 ) ) ; return { file : newUrl } ; } else { return { file : url } ; } } } ) ; callback ( null , compiledCss . css ) ; }