Examine source code of Just an Angel

{
  "theme": {
    "images": {
      "theme_frame": "JustanAngel.jpg"
    },
    "colors": {
      "frame": "#de0000",
      "tab_background_text": "#de0000"
    }
  },
  "version": "2.0",
  "name": "Just an Angel",
  "manifest_version": 2,
  "description": "Black background with an angel and his shadow"
}