Examine source code of A Lonely Howling Wolf

{
  "theme": {
    "images": {
      "theme_frame": "Header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "A Lonely Howling Wolf",
  "manifest_version": 2,
  "description": "This is my first one, so please don't be mad if you do not like it or if you think it's unprofessional. Thanks!"
}