Information:
Says that window ID 2015 (DialogMenuBottomRight.xml) is rarely or never used.
I think it is used for the record TV dialog on Fullscreen TV.
Window IDs
This page lists only valid Windows with Window IDs, not other skin xmls that can be imported, or 'special' xmls like fonts.xml and references.xml which set default skin settings.
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Says that window ID 2015 (DialogMenuBottomRight.xml) is rarely or never used.
I think it is used for the record TV dialog on Fullscreen TV.