make selected gtk3 menu entries visible under default f21 theme
make selected gtk3 menu entries visible under default f21 theme

Change-Id: I7c7043dcc085e7cf31a973929c32c2ebada841b5

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