Examine source code of black0001

{
  "name": "black0001",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "647553.png"
    },
    "colors": {
      "frame": "rgba(0, 0, 0, 1)",
      "tab_background_text": "rgba(3, 255, 62, 1)",
      "toolbar": "rgba(0, 0, 0, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(0, 0, 0, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(3, 252, 240, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d00cc6cb-16fb-4a5a-a35e-571d7789e256}"
    }
  }
}