scale axis and define color by group in box plot using ggwithinstats

Question

I am using grouped_ggwithinstats to make a boxplot for repeated measures of 2 groups for the fist time.

Variables:

• Group (pain-free and CWAD) (between-subjects factor),
• picture (High, moderate and neutral) (within subjects category).
• Dependent variable (variable1, continuous)

grouped_ggwithinstats(data = data, x = Picture, y = variable1,
    grouping.var = Group, xlab = "Picture cateory", ylab = "variable1", 
    package = "RColorBrewer", palette = "Spectral",
    annotation.args = list(title="Within-group comparison for picture category")) 
#plotgrid.args = list(ncol = 1))

However, I cannot manage to:

1. have the same scale for the y axis in both boxplots. I have tried with:

ggplot.component = ggplot2::scale_y_continuous(breaks = seq(-0.3, 0.6, 0.1), limits = (c(-0.3, 0.6))) 

but this only scales the 2nd graph (right)

2. have a different scale of colors in each group (e.g., pain-free group red and CWAD green)

enter image description here

Thanks so much in advance for your help!