Examine source code of Blue_Nova

{
  "theme": {
    "images": {
      "theme_frame": "H_super_blue_nova_2.JPEG"
    },
    "colors": {
      "frame": "#33ffff",
      "tab_background_text": "#33ffff"
    }
  },
  "version": "2.0",
  "name": "Blue_Nova",
  "manifest_version": 2
}