Use rollover color in the native case.
Use rollover color in the native case.

Otherwise, the text on the button easily becomes invisible.

Change-Id: Ia812706559fbee4ce4ccb1f7610cfd235b1dc5c3

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core