Spec out this incomplete experimental feature,
this is a still promising one, we will reintroduce
this officially after 1.0 release
size: -2kb
issue: https://github.com/thorvg/thorvg/issues/1372
Serialization of the "order" attribute caused
the bytes counter to be overwritten, resulting
in the created TVG file being corrupted.
Correctly created tag.tvg file has been included
as a test resource..
dispose of the resources at the end of the paint deletion.
This will help retain the resources of the retained paints
and reuse them after reconstructing the next scene.
