Now I understand the reason for not having those shader options. Don't worry, I'm not going to bother you with this anymore. Another thing I noticed is that it won't load larger png files to display them on the picture area. Is there a memory limitation regarding this feature in MESSUI? It seems that anything larger than 4mb won't be displayed, but I could be wrong.
Since MESSUI is now including both MAME and MESS into the same tree, It would be nice to have those MAME shader options available, so we could set them up through the user interface. I think I have asked for these options before, but at the time MAMEUI and MESSUI were separate projects and both frontends had major issues to fix before new implementations. I hope those major issues are gone. Are these options too complicated to implement into the new MESSUI options tree?