Examine source code of Pearl

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pearl",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(243, 244, 247, 0.2)",
      "toolbar_text": "rgb(239, 139, 233)",
      "frame": "rgb(214, 221, 246)",
      "tab_background_text": "rgb(185, 17, 223)",
      "toolbar_field": "rgb(249, 250, 222)",
      "toolbar_field_text": "rgb(17, 85, 223)",
      "tab_line": "rgb(185, 17, 223)",
      "popup": "rgba(209, 248, 248, 0.77)",
      "popup_text": "rgb(17, 85, 223)",
      "button_background_active": "rgba(209, 248, 248, 0.77)",
      "popup_border": "rgb(223, 17, 135)",
      "tab_text": "rgb(17, 85, 223)",
      "toolbar_bottom_separator": "rgb(17, 208, 223)",
      "toolbar_field_border": "rgb(17, 208, 223)",
      "tab_loading": "rgb(185, 17, 223)"
    }
  }
}