Examine source code of Animated│Ethernet Watcher - Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Animated│Ethernet Watcher - Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center",
        "left center",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(55, 65, 85, 0.5)",
      "toolbar_text": "rgb(225, 225, 225)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(188, 188, 188)",
      "toolbar_field": "rgba(0, 23, 72, 0.03)",
      "toolbar_field_text": "rgb(166, 166, 166)",
      "tab_line": "rgba(0, 14, 255, 0.4)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(225, 225, 225)",
      "button_background_active": "rgba(0, 0, 0, 0.5)",
      "button_background_hover": "rgba(0, 200, 255, 0.7)",
      "icons_attention": "rgb(0, 227, 255)",
      "icons": "rgb(149, 241, 252)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgba(0, 96, 255, 0.4)",
      "popup_highlight": "rgba(0, 200, 255, 0.7)",
      "tab_loading": "rgb(133, 0, 255)",
      "tab_selected": "rgba(55, 65, 85, 0.5)",
      "tab_text": "rgb(170, 246, 255)",
      "toolbar_bottom_separator": "rgba(130, 103, 155, 0.5)",
      "toolbar_field_border_focus": "rgba(0, 96, 255, 0.25)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgba(0, 227, 255, 0.5)",
      "toolbar_field_text_focus": "rgb(225, 225, 225)",
      "toolbar_top_separator": "rgba(0, 14, 255, 0.4)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1345cfe-2498-4a2d-8b14-6afe22bde197}"
    }
  }
}