docs: function buildHolograph(conf, undertaker, cb) {
  
    const sassPath = path.join(conf.themeConfig.root, conf.themeConfig.sass.src);
  
    if (Boolean(conf.themeConfig.sass.holograph) === false) {
      log.info('Skipping Holograph...');
      cb();
      return;
    }
  
    let holographConfig = {
      source: sassPath,
      destination: path.join(conf.themeConfig.root, 'holograph'),
      documentation_assets: path.resolve(path.join(process.cwd(), '/node_modules/holograph/assets')),
      dependencies: [
        path.join(conf.themeConfig.root, conf.themeConfig.sass.dest)
      ],
      css_include: [
        'css/main.css'
      ],
      exit_on_warnings: conf.productionMode,
      global_title: process.cwd().split(path.sep).slice(-2, -1)
    };
  
    // Merge any defined config in with the default config.
    if (isPlainObj(conf.themeConfig.sass.holograph)) {
      holographConfig = merge(holographConfig, conf.themeConfig.sass.holograph);
    }
  
    holograph.holograph(holographConfig, cb);
  
  }