Examine source code of Mandy

{
  "name": "Mandy",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "mandy-2.png"
    },
    "colors": {
      "frame": "rgba(158, 0, 0, 1)",
      "tab_background_text": "rgba(212, 212, 212, 1)",
      "toolbar": "rgba(51, 0, 0, 0.27)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.46)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 0.58)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ce18990c-5594-4937-86d4-3bd86a1aaa34}"
    }
  }
}