webAppManifest : name, shortName

[kubale02]

Hi,
I'm using your gulp-real-favicon, and setting name and shortName for webAppManifest stop working. Everytime it's end up with empty bracket like:

{
  "name": "",
  "short_name": "",
   .....
}

Here is my setting in gulpfile.babel.js

const web_name = "Chlumec nad Cidlinou";
const FAVICON_DATA_FILE = `${path.dev}faviconData.json`;

function generateFavicon(done) {
	realFavicon.generateFavicon(
		{
			masterPicture: `${path.dev}images/MasterImgManifest.png`,
			dest: `${path.dist}images/local/icons/`,
			iconsPath: `/images/local/icons`,
			design: {
				"desktop": {
					"darkIconTransformation": {
						"type": "background",
						"backgroundColor": "#ffffff",
						"backgroundRadius": 0.7,
						"imageScale": 0.7,
						"brightness": 1
					},
					"darkIconType": "regular",
					"regularIconTransformation": {
						"type": "none",
						"backgroundColor": "#ffffff",
						"backgroundRadius": 0.7,
						"imageScale": 0.7,
						"brightness": 1
					}
				},
				"touch": {
					"transformation": {
						"type": "background",
						"backgroundColor": "#ffffff",
						"backgroundRadius": 0,
						"imageScale": 0.7,
						"brightness": 1
					},
					"appTitle": web_name
				},
				"webAppManifest": {
					"name": web_name,
					"shortName": web_name,
					"transformation": {
						"type": "background",
						"backgroundColor": "#ffffff",
						"backgroundRadius": 0,
						"imageScale": 0.7,
						"brightness": 1
					},
					"backgroundColor": "#ffffff",
					"themeColor": "#ffffff"
				}
			},
			markupFile: FAVICON_DATA_FILE,
		},
		function () {
			done();
		}
	);
}