Examine source code of Spooky Pumpkin

{
  "name": "Pumpkin Patch",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Spooky Pumpkin Patch.png"
    },
    "colors": {
      "frame": "rgba(153, 80, 80, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(15, 15, 15, 0.43)",
      "bookmark_text": "rgba(255, 166, 0, 1)",
      "toolbar_field": "rgba(235, 235, 235, 0.85)",
      "toolbar_field_text": "rgba(97, 97, 97, 1)",
      "tab_line": "rgba(255, 167, 25, 1)"
    }
  }
}