Examine source code of Pleasant Brown

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Pleasant Brown",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-036-40a272fe657f748396e017c7a64ee2dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(134, 116, 94)",
      "toolbar_text": "rgb(215, 226, 239)",
      "frame": "rgb(46, 42, 29)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.53)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(115, 111, 91)",
      "popup": "rgb(231, 242, 244)",
      "popup_text": "rgb(84, 84, 84)",
      "tab_loading": "rgb(115, 111, 91)"
    }
  }
}