Examine source code of ´1.try

{
  "name": "´1.try",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "pexels-james-wheeler-417074.jpg"
    },
    "colors": {
      "frame": "rgba(109, 0, 252, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(142, 0, 189, 1)",
      "bookmark_text": "rgba(255, 0, 0, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(255, 0, 0, 1)",
      "tab_line": "rgba(221, 0, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f906e736-5734-49c2-b617-584c9b18cc24}"
    }
  }
}