Examine source code of Winter Bokeh

{
  "name": "Winter Bokeh",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "WinterBokehH.jpg"
    },
    "colors": {
      "frame": "rgba(64, 180, 222, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(62, 179, 222, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(62, 179, 222, 0.04)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{49500686-cf3d-478e-9add-4f5b91d9bcdd}"
    }
  }
}