Examine source code of Corporate Artist

{
  "theme": {
    "images": {
      "theme_frame": "firefox_persona_18.jpg"
    },
    "colors": {
      "frame": "#b3b3b3",
      "tab_background_text": "#0d0d0d"
    }
  },
  "version": "2.0",
  "name": "Corporate Artist",
  "manifest_version": 2,
  "description": "Created for artists looking to still keep a clean, light style with some fun color splashes and corporate patterns."
}