config/image_optim/development.yml

   1 skip_missing_workers: true
   2 advpng: false
   3 gifsicle: false
   4 jhead: false
   5 jpegoptim: false
   6 jpegtran: false
   7 optipng: false
   8 oxipng: false
   9 pngquant: false
  10 pngout: false
  11 pngcrush: false
  12 svgo: false