Examine source code of Alan Becker

{
  "name": "Alan Becker",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "alan.png"
    },
    "colors": {
      "frame": "rgba(0, 77, 255, 0)",
      "tab_background_text": "rgba(0, 66, 199, 1)",
      "toolbar": "rgba(0, 26, 255, 0)",
      "bookmark_text": "rgba(0, 49, 148, 1)",
      "toolbar_field": "rgba(61, 126, 255, 0.45)",
      "toolbar_field_text": "rgba(8, 0, 250, 1)",
      "tab_line": "rgba(8, 48, 250, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{128b6491-b140-4ee7-974b-a1178d3f1609}"
    }
  }
}