Examine source code of Apollo

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Apollo",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.42)",
      "toolbar_text": "rgb(234, 234, 234)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(225, 225, 225)",
      "toolbar_field": "rgba(0, 0, 0, 0.74)",
      "toolbar_field_text": "rgb(180, 87, 255)",
      "tab_line": "rgba(193, 0, 255, 0.4)",
      "popup": "rgb(23, 23, 23)",
      "popup_text": "rgb(234, 234, 234)",
      "button_background_active": "rgba(78, 0, 170, 0.7)",
      "button_background_hover": "rgba(149, 0, 153, 0.65)",
      "frame_inactive": "rgba(0, 0, 0, 0.63)",
      "icons_attention": "rgb(200, 70, 225)",
      "icons": "rgb(234, 234, 234)",
      "ntp_background": "rgb(0, 0, 0)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(255, 255, 255, 0)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(179, 57, 211, 0.42)",
      "sidebar_border": "rgba(230, 230, 230, 0)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgba(179, 57, 211, 0.42)",
      "sidebar_text": "rgb(230, 230, 230)",
      "sidebar": "rgb(23, 23, 23)",
      "tab_loading": "rgba(179, 57, 211, 0.66)",
      "tab_selected": "rgba(0, 0, 0, 0.33)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(25, 25, 25, 0.94)",
      "toolbar_field_border_focus": "rgba(0, 0, 0, 0)",
      "toolbar_field_border": "rgba(179, 57, 211, 0.32)",
      "toolbar_field_focus": "rgba(36, 0, 47, 0.98)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(153, 132, 0)",
      "toolbar_field_separator": "rgb(230, 230, 230)",
      "toolbar_field_text_focus": "rgb(230, 230, 230)",
      "toolbar_top_separator": "rgba(185, 66, 66, 0)",
      "toolbar_vertical_separator": "rgb(230, 230, 230)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c04898f1-42c6-4e35-986c-01604e0ee103}"
    }
  }
}