Examine source code of My new theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#68dade",
      "tab_background_text": "#5e91d9"
    }
  },
  "version": "2.0",
  "name": "My new theme",
  "manifest_version": 2,
  "description": "This theme is natural. This theme is very nice!"
}