Examine source code of Simba & Nala

{
  "name": "Simba and Nala",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Simba and Nala.png"
    },
    "colors": {
      "frame": "rgba(8, 31, 47, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(8, 31, 48, 0)",
      "bookmark_text": "rgba(101, 74, 152, 1)",
      "toolbar_field": "rgba(8, 31, 48, 0)",
      "toolbar_field_text": "rgba(242, 131, 123, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  }
}