Examine source code of like a feather

{
  "name": "In plain sight",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "women-1.png"
    },
    "colors": {
      "frame": "rgba(153, 199, 161, 0.73)",
      "tab_background_text": "rgba(3, 3, 3, 1)",
      "toolbar": "rgba(131, 161, 116, 0.26)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.5)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(146, 212, 70, 0.7)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7219bf76-3f0c-4fdb-9bbc-42922d849cfe}"
    }
  }
}