Examine source code of The Lost Hero

{
  "name": "The Lost Hero",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Lost.jpg"
    },
    "colors": {
      "frame": "#264836",
      "tab_background_text": "#fff3bc",
      "toolbar": "rgba(101, 194, 155, 0.1)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(240, 255, 249, 1)"
    }
  }
}