The appearance of the clock can be personalized. You can define the colors and width of each line type. You can apply a background (wallpaper) read from a BMP file that contains decorations and marks of the clock to more easily imagine the final result. The clock face can also be centered on the background.
You can further personalize the sundial by creating a mask to select which areas of the clock contain the hour lines. The hour lines can be framed this way on the background. To use the mask, a BMP file of the same size as the background should be created. This new file should be monochrome using only white and black. White color indicates the areas of the clock that will contain lines, and black the area where the design will be clipped. This mask file will have the same name as the background and it will be placed in the directory \MASCARAS (MASKS), inside the folder of the executable program file. This way the outline to use as a mask for a selected background has the same file name but is in a different
folder.
Below is the directory and file structure of the program for backgrounds and
masks.
\SUNWATCH3D
sunwatch3d20.exe
\FONDOS
fondo1.bmp
fondo2.bmp
..................
fondo6.bmp <-- background file
\MASCARAS
fondo1.bmp
fondo2.bmp
..................
fondo6.bmp <-- monochrome mask file
