Examine source code of Sunset Sailing by M♥Donna

{
  "name": "Sunset Sailing by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "sunset sail.jpg"
    },
    "colors": {
      "frame": "rgba(209, 82, 77, 1)",
      "tab_background_text": "rgba(255, 250, 250, 1)",
      "toolbar": "rgba(209, 86, 77, 0)",
      "bookmark_text": "rgba(255, 252, 252, 1)",
      "toolbar_field": "rgba(209, 86, 77, 0.1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3323d6d0-2e1f-4966-8ec8-2271fff6f7c6}"
    }
  }
}