It would be nice to be able to save the colors I use with the "fill passage" feature as we can do for patterns and symbols.
I would like to be able to save and name the colors for e.g. sand area, mud area, then when needed I would have just to select the paint roller icon and the predefined color settings in the dropdown menu above, without looking for the exact color I normally use for that. At the moment the fill passage feature only come up with the fill passage default color... and I find it annoying to look for the color I need, even if I use the saved colors feature in the palette: it is limited and I can't name them.

That was a false alarm. You’re right, it does work. I was trying to use the predefined colors right above the paintroller icon and not the one in the color frame. Sorry for the inconvenience.