Examine source code of Dracular

{
  "manifest_version": 2,
  "version": "5.0",
  "name": "Dracular",
  "author": "Lasithds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(51, 55, 65)",
      "toolbar_field": "rgb(27, 30, 41)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(205, 56, 66)",
      "popup": "rgb(36, 42, 52)",
      "popup_text": "rgb(232, 236, 240)",
      "tab_loading": "rgb(205, 56, 66)",
      "bookmark_text": "rgb(238, 241, 244)",
      "frame": "rgb(27, 31, 41)",
      "tab_background_text": "rgb(183, 191, 195)"
    }
  }
}