Examine source code of Soldadinho do Araripe

{
  "name": "Soldadinho do Araripe",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "fundo projeto tecnopolitica educativa ufc navegador web.png"
    },
    "colors": {
      "frame": "rgba(7, 7, 7, 1)",
      "tab_background_text": "rgba(207, 207, 207, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.5)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(99, 49, 49, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f2a31c9c-5946-4de3-8af7-dcab46178bfe}"
    }
  }
}