Examine source code of Photon spirit

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Photon spirit",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(247, 247, 247)",
      "toolbar_text": "rgb(48, 48, 48)",
      "frame": "rgb(32, 35, 64)",
      "tab_background_text": "rgb(247, 247, 247)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(51, 51, 51)",
      "tab_line": "rgba(0, 0, 0, 0)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(4, 4, 4)",
      "frame_inactive": "rgb(32, 35, 64)",
      "tab_selected": "rgb(249, 249, 250)",
      "toolbar_bottom_separator": "rgb(201, 201, 201)",
      "toolbar_field_border_focus": "rgba(10, 132, 255, 0.8)",
      "toolbar_field_border": "rgb(205, 205, 205)",
      "toolbar_field_text_focus": "rgb(4, 4, 4)",
      "tab_loading": "rgba(0, 0, 0, 0)"
    }
  }
}