Examine source code of Nord Snow

{
  "manifest_version": 2,
  "version": "2.2",
  "name": "Nord Snow",
  "theme": {
    "colors": {
      "bookmark_text": "#2e3440",
      "button_background_active": "#5e81ac80",
      "button_background_hover": "#81a1c180",
      "icons_attention": "#bf618a",
      "frame": "#2e3440",
      "frame_inactive": "#3b4252",
      "ntp_background": "#d8dee9",
      "ntp_text": "#2e3440",
      "popup": "#eceff4",
      "popup_border": "#00000000",
      "popup_highlight": "#5e81ac",
      "popup_highlight_text": "#eceff4",
      "popup_text": "#3b4252",
      "sidebar": "#d8dee9",
      "sidebar_border": "#d8dee9",
      "sidebar_highlight": "#5e81ac",
      "sidebar_highlight_text": "#eceff4",
      "sidebar_text": "#3b4252",
      "tab_background_separator": "#d8dee9",
      "tab_background_text": "#eceff4",
      "tab_loading": "#5e81ac",
      "toolbar": "#d8dee9",
      "toolbar_bottom_separator": "#d8dee9",
      "toolbar_field": "#d8dee9",
      "toolbar_field_border": "#d8dee9",
      "toolbar_field_border_focus": "#00000000",
      "toolbar_field_focus": "#eceff4",
      "toolbar_field_highlight": "#5e81ac",
      "toolbar_field_highlight_text": "#eceff4",
      "toolbar_field_text": "#3b4252",
      "toolbar_field_text_focus": "#2e3440",
      "toolbar_top_separator": "transparent",
      "toolbar_vertical_separator": "#e5e9f0"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{204c5ffe-02b0-4bcd-a30c-6dcff915423c}"
    }
  }
}