Running gulp-pixrem doesn't seem to change anything

[digisavvy]

Hey there, Thanks for putting this together. I'm attempting to use this and I'm not seeing any discernable differences here.

Here's my code

var browserSync  = require('browser-sync').create();
var concat       = require('gulp-concat');
var del          = require('del');
var filter       = require('gulp-filter');
var gulp         = require('gulp');
var imagemin     = require('gulp-imagemin');
var jshint       = require('gulp-jshint');
var minifycss    = require('gulp-uglifycss');
var notify       = require('gulp-notify');
var pixrem       = require('gulp-pixrem');
var plugins      = require('gulp-load-plugins')({ camelize: true });
var plumber      = require('gulp-plumber');
var reload       = browserSync.reload;
var rename       = require('gulp-rename');
var replace      = require('gulp-replace');
var runSequence  = require('gulp-run-sequence');
var sass         = require('gulp-sass');
var sourcemaps   = require('gulp-sourcemaps');
var uglify       = require('gulp-uglify');
var zip          = require('gulp-zip');

gulp.task('styles', function() {
  return gulp.src([
      source + 'sass/**/*.scss',
      '!' + source + 'sass/**/navigation-offcanvas.scss'
  ])
    .pipe(plumber({
      errorHandler: function(err) {
        console.log(err);
        this.emit('end');
      }
    }))
    .pipe(sourcemaps.init())
    .pipe(sass({
        sourceComments: 'map',
        sourceMap: 'sass',
        outputStyle: 'nested'
    }).on('error', sass.logError))
    .pipe(autoprefixer(
      'last 2 version',
      'safari 5', 'ie 8',
      'ie 9',
      'opera 12.1',
      'ios 6',
      'android 4'
    ))
    .pipe(pixrem({
      rootValue: '100%',
      map: true,
      replace: true
    }))
    .pipe(sourcemaps.write('../maps'))
    .pipe(plumber.stop())
    .pipe(replace('@charset "UTF-8";', '')) // Removes UTF-8 Encoding string atop CSS files

    .pipe(gulp.dest(source + 'css'))
    .pipe(filter('**/*.css')) // Filtering stream to only css files
    .pipe(reload({stream:true})) // Inject Styles when style file is created
    .pipe(rename({ suffix: '-min' }))
    .pipe(minifycss({
      maxLineLen: 80
    }))
    .pipe(gulp.dest(source + 'css'))
    .pipe(reload({stream:true})) // Inject Styles when min style file is created
    .pipe(notify({ message: 'Styles task complete', onLast: true }));
});