Examine source code of zenOldPaperGreen

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "zenOldPaperGreen",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(80, 107, 97)",
      "toolbar_text": "rgb(245, 239, 234)",
      "frame": "rgb(245, 239, 234)",
      "tab_background_text": "rgb(165, 163, 160)",
      "toolbar_field": "rgb(245, 239, 234)",
      "toolbar_field_text": "rgb(68, 54, 66)",
      "tab_line": "rgba(239, 156, 123, 0.15)",
      "popup": "rgb(245, 239, 234)",
      "popup_text": "rgb(80, 107, 97)",
      "icons_attention": "rgb(243, 129, 82)",
      "icons": "rgb(216, 213, 209)",
      "ntp_background": "rgb(65, 69, 72)",
      "ntp_text": "rgb(152, 231, 212)",
      "tab_selected": "rgb(80, 107, 97)",
      "tab_text": "rgb(248, 207, 190)",
      "toolbar_top_separator": "rgba(65, 69, 72, 0)",
      "tab_loading": "rgba(239, 156, 123, 0.15)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{015430fe-1477-4047-a8c9-09d06f40e458}"
    }
  }
}