Examine source code of RobOhmobil1

{
  "name": "RobOhmobil1",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "RobOhmobil Moodle Firefox Banderole.png"
    },
    "colors": {
      "frame": "rgba(230, 30, 30, 0.34)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(230, 34, 34, 0.35)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(232, 37, 30, 0.82)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b3582713-f81e-4306-a05a-9ea8078c0750}"
    }
  }
}