Examine source code of Blue and Black by M♥Donna

{
  "name": "Blue and Black by M♥Donna",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Black_and_blueH.jpg"
    },
    "colors": {
      "frame": "rgba(247, 232, 232, 0)",
      "tab_background_text": "rgba(242, 239, 239, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(255, 244, 240, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{df40130b-5fef-4855-a570-47618ca12200}"
    }
  }
}