Examine source code of Theme for new no 2

{
  "name": "Theme for new no 2",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "template 4.jpg"
    },
    "colors": {
      "frame": "rgba(19, 70, 189, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{06cf77b8-3414-491f-bb1f-2f756c505fb8}"
    }
  }
}