Examine source code of Regal by M♥Donna

{
  "name": "Regal by M♥Donna",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Regal.jpg"
    },
    "colors": {
      "frame": "rgba(8, 9, 13, 1)",
      "tab_background_text": "rgba(255, 216, 138, 1)",
      "toolbar": "rgba(9, 10, 15, 0.03)",
      "bookmark_text": "rgba(255, 216, 138, 1)",
      "toolbar_field": "rgba(9, 10, 15, 0.08)",
      "toolbar_field_text": "rgba(255, 216, 138, 1)",
      "tab_line": "rgba(255, 216, 138, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{01fb149e-be30-44d6-a166-8bec3d7a2f60}"
    }
  }
}