Examine source code of OrangeGreen

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "OrangeGreen",
  "manifest_version": 2,
  "description": "These colors work great with my eyes.\nThis was create to match colors I had on Google Chrome.  The white highlights the URL bar where home etc are located while the colors highlight bookmark bar in orange and tabs in green."
}