Examine source code of oriole_lightning

{
  "theme": {
    "images": {
      "theme_frame": "banner.jpg"
    },
    "colors": {
      "frame": "#060842",
      "tab_background_text": "#f5f0f0"
    }
  },
  "version": "2.0",
  "name": "oriole_lightning",
  "manifest_version": 2,
  "description": "from the storm"
}