I installed office 2016, under the Windows 7 sp1 in powerpoint 2016 the design of the functional areas, there is no gallery theme, and the theme is only nine, then I under win 10 installed office 2016, in the PPT design function of the 2016 has a gallery theme, theme and 41 species, how do I in the Windows 7 sp1 PPT in the design of functional areas of the 2016 gallery theme?