The question at https://stackoverflow.com/questions/68998729/color-ggscatter-by-r-and-p-values is important. For stat_xxx_eq() this is possible for the equation, a similar approach applied to stat_xx_line() functions would allow coloring or even hiding fitted lines based on p.value of R^2. We should also make R^2adj available. This is fairly easy to implement...
The question at https://stackoverflow.com/questions/68998729/color-ggscatter-by-r-and-p-values is important. For stat_xxx_eq() this is possible for the equation, a similar approach applied to stat_xx_line() functions would allow coloring or even hiding fitted lines based on p.value of R^2. We should also make R^2adj available. This is fairly easy to implement...