Examine source code of Danny

{
  "name": "Danny",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "inbound7639554231725477705.jpg"
    },
    "colors": {
      "frame": "rgba(13, 14, 15, 1)",
      "tab_background_text": "rgba(15, 14, 14, 1)",
      "toolbar": "rgba(46, 40, 40, 1)",
      "bookmark_text": "rgba(5, 4, 4, 1)",
      "toolbar_field_text": "rgba(31, 29, 29, 1)"
    }
  }
}