Examine source code of Floating Beauties

{
  "name": "Floating Beauties",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(210, 226, 252, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(212, 227, 255, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(212, 227, 255, 0.1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(3, 3, 3, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f256a740-3194-41ad-b648-ba4a2be0b5de}"
    }
  }
}