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appstream-generator/src/asgen/handlers/iconhandler.d

Line 55 in 91c04ab

public immutable wantedIconSizes = [ImageSize (64), ImageSize (128), ImageSize (64, 64, 2), ImageSize (128, 128, 2)];

AppCenter uses 48px icons in list views. Since this is a standard Gtk.IconSize it would be great to have it supported :)