Examine source code of Cool Greenery

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cool Greenery",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-015-79a105bb546d3dfdd686392cf3ad1f57.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(9, 160, 129, 0.53)",
      "toolbar_text": "rgb(4, 80, 107)",
      "frame": "rgb(233, 249, 250)",
      "tab_background_text": "rgb(8, 16, 18)",
      "toolbar_field": "rgba(255, 255, 255, 0.82)",
      "toolbar_field_text": "rgb(14, 31, 84)",
      "tab_line": "rgb(207, 24, 58)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(4, 86, 116)",
      "tab_loading": "rgb(207, 24, 58)"
    }
  }
}