Examine source code of Abstract Shapes

{
  "name": "Abstract Shapes",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "X14.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(0, 221, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0.59)",
      "bookmark_text": "rgba(97, 80, 250, 1)",
      "toolbar_field": "rgba(3, 235, 227, 0.6)",
      "toolbar_field_text": "rgba(163, 0, 0, 1)"
    }
  }
}