nl_tokens: Converts from an array of numbers like [ 15 15 15 ] to a hex string like FFF
pl_tokens: function toColorHexString ( ref ) { var results = [ ] ; for ( var j = 0 , len = ref . length ; j < len ; j ++ ) { results . push ( toHexString ( ref [ j ] ) ) ; } return '#' + <mask> . join ( '' ) ; }