Go to settings -> global and pick your subtitle colours. Render your sup-file (be sure to select "use global" for your subs. Go to settings -> ifo colours. It will display the palette entries which mach your colour selection. After you have done the vob muxing step in ifoedit, enter the colours in vts_pgciti -> vts_pgc_1. This is how it works for me. An alternative solution are the (commandline) dvdsuptools. They take a MicroDVD subtitle file and will render a sup file as well. Homepage is .