Examine source code of Unit 1

{
  "theme": {
    "images": {
      "theme_frame": "neoncopy2009.jpg"
    },
    "colors": {
      "frame": "#0e700f",
      "tab_background_text": "#0f2e9e"
    }
  },
  "version": "2.0",
  "name": "Unit 1",
  "manifest_version": 2,
  "description": "Painted image"
}