Examine source code of Night Sky Theme Amber

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Night Sky Theme Amber M Dillion",
  "description": "A sleek and calming night sky theme for Firefox, featuring dark gray and black tones to provide a serene browsing experience.",
  "author": "Amber M Dillion",
  "theme": {
    "images": {
      "theme_frame": "night_sky_background.jpg"
    },
    "colors": {
      "frame": "#1a1a1a",
      "tab_background_text": "#d3d3d3",
      "toolbar": "#333333",
      "bookmark_text": "#d3d3d3",
      "button_background_hover": "#555555",
      "toolbar_text": "#d3d3d3",
      "tab_line": "#737373"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3d01b080-49f3-43a2-8ab2-bc5283586ce7}"
    }
  }
}