vcldemo: repair mini view, and add alpha blended page corner alike.
vcldemo: repair mini view, and add alpha blended page corner alike.

Change-Id: I0c047a2b8940e2be76c94bf9de5423aa7e0eff8b

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