Examine source code of Atom one Dark Theme

{
  "manifest_version": 2,
  "name": "Atom one Dark Theme",
  "version": "2.0",
  "description": "Adds a solid red border to all webpages matching mozilla.org.",
  "theme": {
    "colors": {
      "bookmark_text": "#abb2bf",
      "button_background_active": "#0000",
      "button_background_hover": "#0000",
      "icons": "#abb2bf",
      "icons_attention": "#528bff",
      "frame": "#21252b",
      "frame_inactive": "#21252b",
      "ntp_background": "#282c34",
      "ntp_text": "#abb2bf",
      "popup": "#282c34",
      "popup_border": "#21252b",
      "popup_highlight": "#2c313a",
      "popup_highlight_text": "#fff",
      "popup_text": "#abb2bf",
      "sidebar": "#282c34",
      "sidebar_border": "#474a4f",
      "sidebar_highlight": "#2c313a",
      "sidebar_highlight_text": "#fff",
      "sidebar_text": "#abb2bf",
      "tab_background_separator": "#181a1f",
      "tab_background_text": "#abb2bf",
      "tab_line": "#528bff",
      "tab_loading": "#528bff",
      "tab_selected": "#282c34",
      "tab_text": "#fff",
      "toolbar": "#282c34",
      "toolbar_bottom_separator": "#14161b",
      "toolbar_field": "#21252b",
      "toolbar_field_border": "#181a1f",
      "toolbar_field_border_focus": "#528bff",
      "toolbar_field_focus": "#21252b",
      "toolbar_field_highlight": "#3e4451",
      "toolbar_field_highlight_text": "#fff",
      "toolbar_field_separator": "#181a1f",
      "toolbar_field_text": "#abb2bf",
      "toolbar_field_text_focus": "#fff",
      "toolbar_top_separator": "#181a1f",
      "toolbar_vertical_separator": "#181a1f"
    }
  }
}