gulpfile.js

gulp.task( 'icon-font', function() {
  return gulp.src( ['page_builder_sandwich/assets/editor-icons/*.svg'] )
	.pipe( iconfont( {
	  fontName: 'pbs', // Required
	  appendUnicode: true, // Recommended option
	  formats: ['ttf', 'eot', 'woff'], // Default, 'woff2' and 'svg' are available
	  timestamp: runTimestamp, // Recommended to get consistent builds when watching files
		normalize:true,
		fontHeight: 1001
	} ) )
	  .on( 'glyphs', function( glyphs, options ) {

		// CSS templating, e.g.
		console.log( glyphs, options );
	  } )
	.pipe( gulp.dest( 'page_builder_sandwich/fonts/' ) );
} );