Examine source code of Full Violet

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Full Violet",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-017-7074520d97b5c592d413aed5f115f093.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(77, 0, 158)",
      "toolbar_text": "rgb(192, 135, 255)",
      "frame": "rgb(44, 0, 90)",
      "tab_background_text": "rgb(192, 135, 255)",
      "toolbar_field": "rgb(44, 0, 90)",
      "toolbar_field_text": "rgb(171, 90, 255)",
      "tab_line": "rgb(0, 0, 0)",
      "popup": "rgb(26, 0, 55)",
      "popup_text": "rgb(104, 0, 212)",
      "tab_loading": "rgb(0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c82e7b20-f3a9-46da-bd82-16bb763f6496}"
    }
  }
}