typos: GrayScale->Grayscale
typos: GrayScale->Grayscale

Change-Id: I892fd1a4b8085c1f7c9651d15015fc220876ebee

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