Examine source code of Pleasant Pastel

{
  "name": "Pleasant Pastel",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "1istockphoto-1204024766-612x612.jpg"
    },
    "colors": {
      "frame": "rgba(153, 118, 163, 1)",
      "tab_background_text": "rgba(88, 119, 120, 1)",
      "toolbar": "rgba(65, 74, 71, 1)",
      "bookmark_text": "rgba(41, 46, 40, 1)",
      "toolbar_field": "rgba(213, 180, 214, 1)",
      "toolbar_field_text": "rgba(163, 131, 168, 1)",
      "tab_line": "rgba(36, 212, 194, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3acc648c-9df3-4b7c-bfd1-dfda2d0b572f}"
    }
  }
}