Examine source code of Iridescent Purple

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "iridescent purple",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.41)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(4, 5, 7)",
      "tab_background_text": "rgb(250, 238, 255)",
      "toolbar_field": "rgba(239, 181, 241, 0.36)",
      "toolbar_field_text": "rgba(242, 212, 255, 0.82)",
      "tab_line": "rgba(250, 115, 255, 0.38)",
      "popup": "rgba(21, 21, 21, 0.9)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgba(250, 115, 255, 0.38)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3c3c3f02-50a4-4989-8ac3-cc41a9001416}"
    }
  }
}