greybird: 3.22.9 -> 3.22.10

pkgs/data/themes/greybird/default.nix

@@ -0,0 +1,38 @@
+{ stdenv, fetchFromGitHub, autoreconfHook, which, sassc, glib, libxml2, gdk_pixbuf, librsvg, gtk-engine-murrine }:
+
+stdenv.mkDerivation rec {
+  pname = "greybird";
+  version = "3.22.10";
+
+  src = fetchFromGitHub {
+    owner = "shimmerproject";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "1g1mnzxqwlbymq8npd2j294f8dzf9fw9nicd4pajmscg2vk71da9";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    which
+    sassc
+    glib
+    libxml2
+  ];
+
+  buildInputs = [
+    gdk_pixbuf
+    librsvg
+  ];
+
+  propagatedUserEnvPkgs = [
+    gtk-engine-murrine
+  ];
+
+  meta = with stdenv.lib; {
+    description = "Grey and blue theme from the Shimmer Project for GTK+-based environments";
+    homepage = https://github.com/shimmerproject/Greybird;
+    license = with licenses; [ gpl2Plus ]; # or alternatively: cc-by-nc-sa-30
+    platforms = platforms.linux;
+    maintainers = [ maintainers.romildo ];
+  };
+}