Examine source code of Glowing Kingfisher

{
  "theme": {
    "images": {
      "theme_frame": "glowing-kingfisher.jpg"
    },
    "colors": {
      "frame": "#6b6c73",
      "tab_background_text": "#add9ff"
    }
  },
  "version": "2.0",
  "name": "Glowing Kingfisher",
  "manifest_version": 2,
  "description": "Kingfisher feathers combined with a pattern"
}