Examine source code of Simplistic Green

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Simplistic Green",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(54, 70, 77)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(3, 32, 44)",
      "tab_background_text": "rgb(215, 226, 239)",
      "toolbar_field": "rgb(3, 32, 44)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(7, 179, 251)",
      "popup": "rgb(3, 32, 44)",
      "popup_text": "rgb(215, 226, 239)",
      "button_background_active": "rgb(3, 32, 44)",
      "button_background_hover": "rgb(54, 70, 77)",
      "frame_inactive": "rgb(54, 70, 77)",
      "icons_attention": "rgb(54, 70, 77)",
      "ntp_background": "rgb(3, 32, 44)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(10, 2, 11)",
      "tab_loading": "rgb(54, 70, 77)",
      "toolbar_bottom_separator": "rgb(54, 70, 77)",
      "toolbar_field_border": "rgb(54, 70, 77)",
      "toolbar_field_separator": "rgb(3, 32, 44)",
      "toolbar_vertical_separator": "rgb(3, 32, 44)"
    }
  }
}