Most raster applications have a concept of the currently selected/active layer. This should be possible to persist in OpenRaster files. See also downstream bugreport: https://gna.org/bugs/?18067
Let's kick this off. Specification proposal: http://www.freedesktop.org/wiki/Specifications/OpenRaster/Draft/LayerSelectionStatus Mailing list discussion: http://lists.freedesktop.org/archives/create/2012-March/004259.html
As for bug 37714, we have both rough consensus on the list and running code for this. Could someone please review and merge https://gitorious.org/openraster/openraster-standard/merge_requests/1 Many thanks.
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