Output binaries are included to the package by default. To include non-output files as part of the package, please make sure the "Content" property for the particular file is set to "true" in the properties window.
This property is set to "true" by default for Image files, with extension of ".jpg", ".jpe" ".jpeg", ".jfif" , ".png", ".bmp" , ".dib", ".gif" , ".ico" , ".tif" , ".tiff".
Li Shao, MSFT
Li Shao