FF9 - best cartoon shader config

Yes that's my problem. Which cartoon shader should I choose to view FF9 bestly? Class B, Class C, I, II or III, Advanced? What will be the best configuration to see everything clearly? Cause when I choose maximum level of shader, everything is too dark, but when I choose weaker levels, there the backgrounds are pixelized and I cannot play like this. Also if level is to strong, letters are almost illegible. I saw some screenshots of FF7 with using cartoon shader, it was really great and the letters where very clear. How can I do this?