anchor.diff:    postPatch = ''
       chmod +x meson/post_install.py
       patchShebangs meson/post_install.py
  +  '';
  +
  +  preFixup = ''
  +    gappsWrapperArgs+=(
  +      # The GTK theme is hardcoded.
  +      --prefix XDG_DATA_DIRS : "${elementary-gtk-theme}/share"
  +      # The icon theme is hardcoded.
  +      --prefix XDG_DATA_DIRS : "$XDG_ICON_DIRS"
  +    )
     '';
   
     passthru = {
  
positive.code:       url = "https://github.com/elementary/music/commit/97a437edc7652e0b85b7d3c6fd87089c14ec02e2.patch";
        sha256 = "sha256-VmK5dKfSKWAIxfaKXsC8tjg6Pqq1XSGxJDQOZWJX92w=";
      })
    ];
  
    nativeBuildInputs = [
  
negative.code: , python3
  , vala
  , wrapGAppsHook4
  , elementary-gtk-theme
  , elementary-icon-theme
  , glib
  , granite7
  , gst_all_1
  