Examine source code of Jalsmith4

{
  "name": "Jalsmith4 ",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "colorbynumber1673205746137.png"
    },
    "colors": {
      "frame": "rgba(234, 232, 235, 0.73)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{662e6e4c-bdf3-4d96-bf5c-eda914350248}"
    }
  }
}