anchor.diff:  You can also change the logo and the loader.
   For that, edit constants.json and change the value of :
   
  +. `theme.name` to your custom name.
   . `theme.logo` to "themes/assets/your_logo.png".
   . `theme.loader` to "assets/your_loader.gif".
   
  
positive.code:     "url" : "https://docs.gravitee.io"
    },
    "theme" : {
      "logo" : "themes/assets/GRAVITEE_LOGO1-01.png",
      "loader" : "assets/gravitee_logo_anim.gif"
    }
  
negative.code: 
  image::apim/3.x/installation/management-ui/graviteeio-installation-management-ui-settings.png[]
  
  ====
  