{
  "name": "traffico",
  "version": "0.1.8",
  "description": "Traffic signs packaged in a font",
  "main": "gulpfile.js",
  "repository": {
    "type": "git",
    "url": "https://github.com/mapillary/traffico"
  },
  "author": "Kamil Nikel",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/mapillary/traffico/issues"
  },
  "homepage": "https://github.com/mapillary/traffico",
  "devDependencies": {
    "gulp": "^3.9.0",
    "gulp-concat": "^2.6.0",
    "gulp-cson": "0.3.0",
    "gulp-sass": "2.0.3",
    "gulp-shell": "^0.4.2",
    "gulp-watch": "^4.2.4",
    "phantom": "^0.8.3",
    "phantomjs": "^1.9.0",
    "standard": "^5.1.0"
  },
  "scripts": {
    "gulp": "gulp",
    "clean": "gulp clean"
  }
}

{
  "name": "traffico",
  "version": "0.1.8",
  "description": "Traffic signs packaged in a font",
  "main": "gulpfile.js",
  "repository": {
    "type": "git",
    "url": "https://github.com/mapillary/traffico"
  },
  "author": "Kamil Nikel",
  "license": "MIT",
  "bugs": {
    "url": "https://github.com/mapillary/traffico/issues"
  },
  "homepage": "https://github.com/mapillary/traffico",
  "devDependencies": {
    "gulp": "^3.9.0",
    "gulp-concat": "^2.6.0",
    "gulp-cson": "0.3.1",
    "gulp-sass": "2.1.0",
    "gulp-shell": "^0.5.1",
    "gulp-watch": "^4.3.5",
    "phantom": "^0.8.4",
    "phantomjs": "^1.9.19",
    "standard": "^5.4.1"
  },
  "scripts": {
    "gulp": "gulp",
    "clean": "gulp clean",
    "pngs": "gulp pngs"
  }
}

Update devDependencies and add pngs-task to npm-scripts
Update devDependencies and add pngs-task to npm-scripts

Now you can run `npm run pngs` for generating pngs without having gulp installed.
