Examine source code of Paper guitars

{
  "name": "Хартиени китари",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Хартиени китари.jpg"
    },
    "colors": {
      "frame": "rgba(10, 10, 10, 1)",
      "tab_background_text": "rgba(245, 78, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(3, 92, 2, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(2, 185, 209, 1)",
      "tab_line": "rgba(72, 6, 158, 1)"
    }
  }
}