Examine source code of cirrus minor

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "cirrus minor",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "right top",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(18, 18, 18)",
      "toolbar_text": "rgb(173, 233, 235)",
      "frame": "rgb(25, 25, 25)",
      "tab_background_text": "rgb(16, 230, 236)",
      "toolbar_field": "rgb(20, 20, 20)",
      "toolbar_field_text": "rgb(16, 230, 236)",
      "tab_line": "rgb(16, 230, 236)",
      "popup": "rgb(31, 34, 61)",
      "popup_text": "rgb(16, 230, 236)",
      "button_background_active": "rgb(72, 77, 76)",
      "button_background_hover": "rgb(218, 219, 203)",
      "frame_inactive": "rgb(178, 179, 163)",
      "icons_attention": "rgb(239, 251, 15)",
      "icons": "rgb(47, 185, 162)",
      "ntp_background": "rgb(25, 25, 25)",
      "ntp_text": "rgb(30, 223, 176)",
      "popup_border": "rgb(47, 185, 162)",
      "popup_highlight_text": "rgb(30, 223, 176)",
      "popup_highlight": "rgb(239, 251, 15)",
      "sidebar_border": "rgb(47, 185, 162)",
      "sidebar_highlight_text": "rgb(239, 123, 11)",
      "sidebar_text": "rgb(16, 230, 236)",
      "tab_loading": "rgb(16, 230, 236)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8316017f-66ae-48e6-969e-f306643b945e}"
    }
  }
}