Examine source code of spring-munich

{
  "theme": {
    "images": {
      "theme_frame": "spring_munich_front.jpg"
    },
    "colors": {
      "frame": "#faf0f0",
      "tab_background_text": "#e8dcdc"
    }
  },
  "version": "2.0",
  "name": "spring-munich",
  "manifest_version": 2
}