Examine source code of Abigail dancing

{
  "name": "Abigail dancing",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "60px-Abigail-Dev_Update_12.gif"
    },
    "colors": {
      "frame": "rgba(12, 40, 125, 1)",
      "tab_background_text": "rgba(49, 109, 135, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{134534ac-ce2e-4373-942b-9131344e09c6}"
    }
  }
}