Examine source code of Old Glory Waves

{
  "theme": {
    "images": {
      "theme_frame": "OGH2.jpg"
    },
    "colors": {
      "frame": "#0f1b78",
      "tab_background_text": "#0f1b78"
    }
  },
  "version": "2.0",
  "name": "Old Glory Waves",
  "manifest_version": 2,
  "description": "US flag in corner with white background. "
}