a LOT of people ask me this, so i made this so i dont have to write out all the settings |D
these are the four brushes i use the most in SAI. i usually use the pen tool for sketching and ink pen for lineart. i also switch between marker and brush for coloring depending on the effect i want. i use the brush tool for single layer images.
When I choose marker setting like your, I see the color that I paint out is much more lighter than the one I choose??? Like when I choose dark red, it turn out light pink
..I think I may have installed too many brushes, textures and whatnot into my Paint Tool SAI.