Examine source code of Betelgeuse

{
  "version": "1.0.2",
  "manifest_version": 2,
  "name": "Betelgeuse",
  "description": "An elegant, sexy, and functional theme for Firefox.",
  "theme": {
    "colors": {
      "bookmark_text": [
        195,
        199,
        209
      ],
      "frame": [
        22,
        25,
        37
      ],
      "frame_inactive": [
        47,
        50,
        62
      ],
      "icons_attention": [
        195,
        199,
        209
      ],
      "icons": [
        195,
        199,
        209
      ],
      "ntp_background": [
        47,
        50,
        62
      ],
      "ntp_text": [
        195,
        199,
        209
      ],
      "popup_highlight_text": [
        71,
        75,
        86
      ],
      "popup_highlight": [
        170,
        174,
        184
      ],
      "toolbar_field_highlight_text": [
        71,
        75,
        86
      ],
      "popup_border": [
        47,
        50,
        62
      ],
      "popup_text": [
        195,
        199,
        209
      ],
      "popup": [
        47,
        50,
        62
      ],
      "sidebar_border": [
        47,
        50,
        62
      ],
      "sidebar_highlight_text": [
        170,
        174,
        184
      ],
      "sidebar_highlight": [
        71,
        75,
        86
      ],
      "sidebar_text": [
        170,
        174,
        184
      ],
      "sidebar": [
        47,
        50,
        62
      ],
      "tab_background_text": [
        195,
        199,
        209
      ],
      "tab_loading": [
        195,
        199,
        209
      ],
      "tab_text": [
        195,
        199,
        209
      ],
      "toolbar_bottom_separator": [
        47,
        50,
        62
      ],
      "toolbar_field_border": [
        47,
        50,
        62
      ],
      "toolbar_field_separator": [
        47,
        50,
        62
      ],
      "toolbar_field_text_focus": [
        195,
        199,
        209
      ],
      "toolbar_field_text": [
        195,
        199,
        209
      ],
      "toolbar_field": [
        47,
        50,
        62
      ],
      "toolbar_field_border_focus": [
        71,
        75,
        86
      ],
      "toolbar": [
        47,
        50,
        62
      ]
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a7ea3aaf-efc2-466d-b480-d24cbc15b055}"
    }
  }
}