Examine source code of Sieve Plaid

{
  "theme": {
    "images": {
      "theme_frame": "SPHeader01.jpg"
    },
    "colors": {
      "frame": "#666666",
      "tab_background_text": "#faf7f7"
    }
  },
  "version": "2.0",
  "name": "Sieve Plaid",
  "manifest_version": 2,
  "description": "stripes, blue, red, london, french, plaid, sieve, line"
}