Examine source code of Whale Light

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Whale Light",
  "theme": {
    "colors": {
      "toolbar": "#ffffff",
      "tab_line": "#ffffff",
      "tab_text": "#000000",
      "bookmark_text": "#202124",
      "frame": "#dfe2e7",
      "frame_inactive": "#eceef2",
      "tab_background_text": "#000000",
      "toolbar_field": "#ffffff",
      "toolbar_field_text": "#393835",
      "toolbar_field_text_focus": "#393835",
      "toolbar_field_focus": "#ffffff",
      "toolbar_field_border": "#ffffff",
      "toolbar_field_border_focus": "#ffffff",
      "toolbar_field_highlight": "#4ba7ee",
      "toolbar_field_highlight_text": "#ffffff",
      "toolbar_field_separator": "#cfd4d2",
      "toolbar_text": "#202124",
      "toolbar_top_separator": "#ffffff",
      "toolbar_bottom_separator": "#dde2e5",
      "toolbar_vertical_separator": "#ffffff",
      "tab_background_separator": "#a7aaad",
      "popup": "#ffffff",
      "popup_text": "#202124",
      "popup_border": "#bcbcbc",
      "popup_highlight": "#4ba7ee",
      "popup_highlight_text": "#ffffff",
      "tab_loading": "#aaa8a6",
      "tab_selected": "#ffffff",
      "sidebar": "#fcfdfd",
      "sidebar_highlight": "#d4e8fa",
      "sidebar_highlight_text": "#57554f",
      "sidebar_text": "#57554f",
      "sidebar_border": "#dde2e5",
      "button_background_active": "#d0d4d7",
      "button_background_hover": "#dcdfe1",
      "icons": "#111111",
      "icons_attention": "#ffac00",
      "ntp_background": "#f4f6fa",
      "ntp_link": "#454545",
      "ntp_text": "#454545"
    }
  }
}