Examine source code of Catholic - St. Michael

{
  "name": "Catholic - St. Michael",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "stmichaeltheme.jpg"
    },
    "colors": {
      "frame": "rgba(212, 196, 195, 1)",
      "tab_background_text": "rgba(201, 195, 171, 1)",
      "toolbar": "rgba(255, 255, 255, 0.2)",
      "bookmark_text": "rgba(222, 200, 122, 1)",
      "toolbar_field": "rgba(255, 255, 255, 0.92)",
      "toolbar_field_text": "rgba(31, 26, 26, 1)",
      "tab_line": "rgba(94, 43, 43, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9c9bb70a-03fc-4655-9bef-dcb1363bf52d}"
    }
  }
}