Custom Theme? Firefox

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manifest.json
{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Custom Theme?",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(241, 241, 241)",
      "toolbar_text": "rgb(64, 69, 82)",
      "frame": "rgb(64, 69, 82)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(64, 69, 82)",
      "tab_line": "rgb(64, 69, 82)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(102, 102, 102)",
      "frame_inactive": "rgb(64, 69, 82)",
      "popup_border": "rgb(255, 255, 255)",
      "popup_highlight_text": "rgb(102, 102, 102)",
      "tab_loading": "rgb(64, 69, 82)",
      "toolbar_field_highlight_text": "rgb(102, 102, 102)"
    }
  }
}

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