Examine source code of Dark Mode Greens

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark Mode Greens",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-031-9570e8d1f7a5f835c92e764693337f43.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(44, 44, 44)",
      "toolbar_text": "rgb(0, 255, 100)",
      "frame": "rgb(71, 255, 146)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(116, 116, 116)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(18, 254, 255)",
      "popup": "rgb(126, 255, 179)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(18, 254, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{afba7fb7-0dc1-40df-b4a0-b40476502e43}"
    }
  }
}