gtk+3: provide a default theme, icontheme and font.

srcpkgs/gtk+3/files/settings.ini

@@ -0,0 +1,4 @@
+[Settings]
+gtk-icon-theme-name = gnome
+gtk-theme-name = Adwaita
+gtk-font-name = Cantarell 11

srcpkgs/gtk+3/template

@@ -1,7 +1,7 @@
 # Template build file for 'gtk+3'.
 pkgname=gtk+3
 version=3.10.1
-revision=1
+revision=2
 wrksrc="gtk+-${version}"
 build_style=gnu-configure
 configure_args="--enable-cups --disable-schemas-compile --enable-gtk2-dependency --enable-colord"
@@ -57,6 +57,8 @@ fi
 
 post_install() {
 	rm -f ${DESTDIR}/usr/share/man/man1/gtk-update-icon-cache.1
+	# Provide a default (icon)theme.
+	vinstall ${FILESDIR}/settings.ini 644 usr/share/gtk-3.0
 }
 
 gtk+3-devel_package() {