Examine source code of green beens

{
  "manifest_version": 2,
  "version": "8.1.2",
  "name": "Garette Dark Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-013-06591d4ad28ab7b9ee90f62f81d6b505.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "frame": "#21252B",
      "tab_background_text": "#5A5F6A",
      "toolbar": "#282C34",
      "bookmark_text": "#D4D7DD",
      "tab_text": "#D4D7DD",
      "tab_line": "#03DE82",
      "toolbar_field": "#393E49",
      "toolbar_field_text": "#9DA5B4",
      "ntp_background": "#282C34",
      "ntp_text": "#D4D7DD",
      "popup": "#282C34",
      "popup_text": "#D4D7DD",
      "popup_highlight": "#21252B",
      "popup_highlight_text": "#D4D7DD",
      "sidebar": "#282C34",
      "sidebar_text": "#D4D7DD",
      "sidebar_highlight": "#21252B",
      "sidebar_highlight_text": "#D4D7DD"
    }
  }
}