Examine source code of Deathmatch

{
  "manifest_version": 2,
  "version": "3",
  "name": "gamenight-140923",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.31)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(177, 172, 172)",
      "tab_background_text": "rgb(226, 236, 225)",
      "toolbar_field": "rgba(64, 91, 90, 0.75)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(0, 255, 207, 0.44)",
      "popup": "rgba(34, 34, 34, 0.93)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(90, 90, 90)",
      "button_background_hover": "rgba(0, 255, 207, 0.44)",
      "frame_inactive": "rgba(252, 248, 248, 0.74)",
      "icons_attention": "rgb(255, 193, 0)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgba(214, 210, 210, 0.81)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(0, 255, 207, 0.44)",
      "popup_highlight_text": "rgb(32, 36, 36)",
      "popup_highlight": "rgb(195, 190, 190)",
      "sidebar_border": "rgba(0, 255, 207, 0.44)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(40, 83, 77)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(51, 52, 52)",
      "tab_background_separator": "rgba(40, 37, 40, 0.51)",
      "tab_loading": "rgb(57, 217, 203)",
      "tab_selected": "rgba(0, 0, 0, 0.46)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0.31)",
      "toolbar_field_border_focus": "rgb(39, 161, 151)",
      "toolbar_field_border": "rgb(0, 0, 0)",
      "toolbar_field_focus": "rgb(0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgb(118, 207, 205)",
      "toolbar_field_separator": "rgb(255, 255, 255)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(0, 0, 0, 0)",
      "toolbar_vertical_separator": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ce7d2dba-792d-40a4-a4e8-54ddba707bf2}"
    }
  }
}