Examine source code of Angel Devilgate

{
  "theme": {
    "images": {
      "theme_frame": "angel-header.jpg"
    },
    "colors": {
      "frame": "#1d2b00",
      "tab_background_text": "#132600"
    }
  },
  "version": "2.0",
  "name": "Angel Devilgate",
  "manifest_version": 2,
  "description": "This is my friend's youtube character"
}