I try to use BMP image files with 16 colors but I have compilation error because the project size file have the size of a 256 color and I don't have enough flash to load the project. Please do not convert the added BMP image files that are smaller then 256 colors or do not reserve size larger than the BMP image files have.
I solved my issue exporting the code and finishing in Tibbo IDE on my PC where the size of the files are correct.