Examine source code of Spring Plaid

{
  "theme": {
    "images": {
      "theme_frame": "plaid.jpg"
    },
    "colors": {
      "frame": "#718573",
      "tab_background_text": "#492463"
    }
  },
  "version": "2.0",
  "name": "Spring Plaid",
  "manifest_version": 2,
  "description": "Beautiful twill plaid in a spring colors"
}