Examine source code of autumncolors

{
  "theme": {
    "images": {
      "theme_frame": "Otoo.jpg"
    },
    "colors": {
      "frame": "#e00daf",
      "tab_background_text": "#b00c51"
    }
  },
  "version": "2.0",
  "name": "autumncolors",
  "manifest_version": 2,
  "description": "Ojas con fondo colorido en gradiente."
}