Examine source code of polish femboy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Femboy theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(224, 175, 233)",
      "toolbar_text": "rgb(23, 12, 7)",
      "frame": "rgb(180, 149, 196)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(227, 190, 233)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(74, 93, 55, 0.43)",
      "popup": "rgb(211, 245, 171)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgba(74, 93, 55, 0.43)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{25a5a674-082d-44b9-8dcc-5269d96ddbf5}"
    }
  }
}