Little problems with the plots #144

Hello, I'm using your wonderful package but I am wondering if there is a bug or if it comes from me.

1. I work now on repeated measures with paired data, I should have the same colors for the 3 individuals in my group (I have 5 groups of 3 individuals) but instead I have 2 identical colors and one which is not very similar per group. Here is a view of my plot :

Is it expected or something goes wrong ?

2. Another thing, I've searched how to put the title on the legend of a 'basic' .load() because I do "color_col=" as a .plot() parameter but I just have the values, it could be great to have the title. If I do the same thing as the plot for repeated measures (which has the title on the legend) it doesn't work. Here the view of the plot with the problem of the legend :

3. Moreover, I don't know if is it possible to put a title on the plots, I haven't found the argument for.