Examine source code of Color Pull by M♥Donna

{
  "name": "Color Pull by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "colorPUll.jpg"
    },
    "colors": {
      "frame": "rgba(54, 29, 2, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(56, 32, 2, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(56, 32, 2, 0.05)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b2d8b375-2dd7-4201-8f0c-cba44ff5c4b0}"
    }
  }
}