Examine source code of Mockingjay 13 Plutarch

{
  "name": "Mockingjay 13 Plutarch",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Plutarch.jpg"
    },
    "colors": {
      "frame": "#64696e",
      "tab_background_text": "#f2f2f2",
      "toolbar": "rgba(66, 66, 66, 0.08)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}