Examine source code of Discord-Chan

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Discord-Chan",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgb(28, 30, 33)",
      "toolbar_text": "rgb(78, 106, 229)",
      "frame": "rgb(54, 57, 64)",
      "tab_background_text": "rgb(78, 106, 229)",
      "toolbar_field": "rgb(144, 150, 158)",
      "toolbar_field_text": "rgb(78, 106, 229)",
      "tab_line": "rgb(89, 120, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(89, 120, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ba8cf8e4-ab9f-473a-ad98-323508d5469a}"
    }
  }
}