Examine source code of Starry Blue 2

{
  "theme": {
    "images": {
      "theme_frame": "top.png"
    },
    "colors": {
      "frame": "#b3aaaa",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Starry Blue 2",
  "manifest_version": 2,
  "description": "My first try, a simple blue bar with stars on the right."
}