libgtk3

[
  {
    "kind": "system",
    "origin": {
      "case(distribution)": {
        "arch": [
          "gtk3"
        ],
        "centos|fedora": [
          "gtk3-devel"
        ],
        "debian|ubuntu": [
          "libgtk-3-dev"
        ],
        "homebrew": [
          "gtk+3"
        ],
        "macports": [
          "gtk3"
        ],
        "msys2": [
          "mingw-w64-x86_64-gtk3"
        ],
        "suse": [
          "gtk3-devel"
        ]
      }
    }
  },
  {
    "available": false,
    "kind": "version-output",
    "version-command": [
      "pkg-config",
      "--modversion",
      "gtk+-3.0"
    ],
    "version-regexp": "([\\d\\.]+)"
  }
]