Examine source code of Half-Life 2 Logo

{
  "theme": {
    "images": {
      "theme_frame": "hl22.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ff9a00"
    }
  },
  "version": "2.0",
  "name": "Half-Life 2 Logo",
  "manifest_version": 2,
  "description": "I was wondering why there wasn't a Half-Life 2 Persona, so I made my one :)"
}