Examine source code of macromedia (unofficial)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "macromedia (unofficial)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(195, 1, 111)",
      "toolbar_text": "rgb(248, 248, 255)",
      "frame": "rgb(3, 12, 67)",
      "tab_background_text": "rgb(187, 189, 208)",
      "toolbar_field": "rgb(248, 248, 255)",
      "toolbar_field_text": "rgb(123, 127, 204)",
      "tab_line": "rgb(50, 91, 166)",
      "popup": "rgb(248, 248, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(50, 91, 166)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{95f92d69-c492-4ea1-b3c7-0ae0f64e42b8}"
    }
  }
}