Examine source code of Flashing Lights

{
  "name": "Flashing Lights",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "MORIBUND BUT.png"
    },
    "colors": {
      "frame": "rgba(0, 77, 255, 1)",
      "tab_background_text": "rgba(128, 70, 70, 1)",
      "toolbar": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(125, 85, 85, 1)",
      "toolbar_field": "rgba(255, 163, 163, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(128, 84, 84, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9c851383-baa7-450f-bc0e-a69e99018537}"
    }
  }
}