Examine source code of Glitter-Background

{
  "name": "Glitter Background",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Glitter Background.png"
    },
    "colors": {
      "frame": "rgba(27, 27, 28, 1)",
      "tab_background_text": "rgba(102, 116, 237, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dd41e1be-9ed3-4cb8-91bd-70fa165a483d}"
    }
  }
}