Examine source code of Sugarloaf Sunset

{
  "name": "Sugarloaf Sunset",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "sugarloaf sunset.jpg"
    },
    "colors": {
      "frame": "rgba(190, 98, 23, 1)",
      "tab_background_text": "rgba(252, 252, 252, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}