Examine source code of MaDonnas Grass

{
  "name": "MaDonnas Grass",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "GrassH.jpg"
    },
    "colors": {
      "frame": "rgba(79, 122, 64, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(77, 122, 64, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(77, 122, 64, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{84f0258c-4d35-45bb-9ddf-b05eec1ba1e6}"
    }
  }
}