Examine source code of Ramlethal Valentine

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ramlethal Valentine",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0)",
      "toolbar_text": "rgb(214, 255, 210)",
      "frame": "rgb(26, 19, 5)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(202, 186, 135, 0.3)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(236, 192, 87)",
      "popup": "rgb(43, 43, 43)",
      "popup_text": "rgb(236, 192, 87)",
      "button_background_active": "rgb(44, 57, 46)",
      "button_background_hover": "rgb(54, 85, 52)",
      "icons": "rgb(154, 192, 131)",
      "ntp_background": "rgb(41, 40, 38)",
      "ntp_text": "rgb(255, 212, 130)",
      "popup_border": "rgb(223, 175, 39)",
      "popup_highlight": "rgb(226, 170, 11)",
      "tab_loading": "rgb(182, 237, 179)",
      "tab_selected": "rgba(202, 186, 135, 0.3)",
      "tab_text": "rgb(255, 222, 116)",
      "toolbar_field_border": "rgb(226, 195, 121)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8a416292-2e3b-4b34-9937-c5bab42e71b4}"
    }
  }
}