Examine source code of L by M♥Donna

{
  "name": "L by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "L.jpg"
    },
    "colors": {
      "frame": "rgba(209, 243, 199, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(210, 245, 201, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(210, 245, 201, 0.03)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2949e400-5cf2-4007-8a40-c30a17a32b33}"
    }
  }
}