Examine source code of B&W daylight

{
  "manifest_version": 2,
  "version": "5.0",
  "name": "B&W DAYLIGHT",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(240, 240, 240)",
      "toolbar_text": "rgb(42, 42, 42)",
      "frame": "rgb(220, 220, 220)",
      "tab_background_text": "rgb(42, 42, 42)",
      "toolbar_field": "rgba(35, 35, 35, 0.81)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.82)",
      "tab_line": "rgba(42, 42, 42, 0.34)",
      "popup": "rgba(35, 35, 35, 0.81)",
      "popup_text": "rgba(255, 255, 255, 0.82)",
      "frame_inactive": "rgba(200, 200, 200, 0.9)",
      "popup_border": "rgba(35, 35, 35, 0.81)",
      "toolbar_bottom_separator": "rgb(220, 220, 220)",
      "toolbar_field_highlight_text": "rgb(42, 42, 42)",
      "toolbar_field_highlight": "rgba(255, 255, 255, 0.86)",
      "toolbar_field_text_focus": "rgb(42, 42, 42)",
      "toolbar_top_separator": "rgb(220, 220, 220)",
      "tab_loading": "rgba(42, 42, 42, 0.34)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e71450da-ba80-48a8-b65b-e1683f55c97e}"
    }
  }
}