Examine source code of monet

{
  "name": "monet",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Monet_-_Waterloo_Bridge,_Sunlight_Effect,_1903.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 0.76)",
      "toolbar": "rgba(255, 255, 255, 0.36)",
      "bookmark_text": "rgba(255, 255, 255, 0.82)",
      "toolbar_field": "rgba(255, 255, 255, 0.36)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.78)",
      "tab_line": "rgba(255, 255, 255, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{433e16b2-52d6-4f50-8222-8c08a94522ea}"
    }
  }
}