matcha: move to pkgs/data/themes

pkgs/data/themes/matcha/default.nix

@@ -0,0 +1,32 @@
+{ stdenv, fetchFromGitHub, gdk_pixbuf, librsvg, gtk-engine-murrine }:
+
+stdenv.mkDerivation rec {
+  name = "matcha-${version}";
+  version = "2018-12-24";
+
+  src = fetchFromGitHub {
+    owner = "vinceliuice";
+    repo = "matcha";
+    rev = version;
+    sha256 = "178y5s5jfprkw8y6clqb8ss4kvfswivfrh6cn67fk4z7wg72i3yc";
+  };
+
+  buildInputs = [ gdk_pixbuf librsvg ];
+
+  propagatedUserEnvPkgs = [ gtk-engine-murrine ];
+
+  installPhase = ''
+    patchShebangs .
+    mkdir -p $out/share/themes
+    name= ./Install -d $out/share/themes
+    install -D -t $out/share/gtksourceview-3.0/styles src/extra/gedit/matcha.xml
+  '';
+
+  meta = with stdenv.lib; {
+    description = "A stylish Design theme for GTK based desktop environments";
+    homepage = https://vinceliuice.github.io/theme-matcha;
+    license = licenses.gpl3;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.romildo ];
+  };
+}