Examine source code of cores do outono

{
  "name": "cores do outono",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "outono.png"
    },
    "colors": {
      "frame": "rgba(255, 93, 5, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(77, 47, 9, 0.32)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(45, 66, 12, 0.1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a0303ecf-6385-4e83-a2ec-a56f40712e25}"
    }
  }
}