Examine source code of Blue and Green Theme

{
  "theme": {
    "images": {
      "theme_frame": "BlueandGreenhead.jpg"
    },
    "colors": {
      "frame": "#dbd4d4",
      "tab_background_text": "#66e6e8"
    }
  },
  "version": "2.0",
  "name": "Blue and Green Theme",
  "manifest_version": 2,
  "description": "As in title with light blue text.\nEnjoy."
}