Examine source code of Cheese Lover

{
  "name": "Cheese Lover",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "cheeselover.png"
    },
    "colors": {
      "frame": "rgba(94, 94, 94, 0.66)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(219, 219, 219, 0.44)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(235, 235, 235, 0.35)",
      "toolbar_field_text": "rgba(3, 3, 3, 1)",
      "tab_line": "rgba(255, 255, 255, 0.66)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{509b75c6-77ad-4666-afbf-7e1a65b9033c}"
    }
  }
}