yes, I noticed.
another way to get the information: the hover label
Nevertheless, it takes a while to get the "full picture" by hovering over individual interaction lines and checking the respective variable settings. Here I prefer the color coding in the interaction profiler - it allows "my eye" to process this information
(Plenary: All Graphs Are Wrong, but Some Are Useful by @XanGregg )
On the other hand, how to squeeze all the color coding of several interaction profiles simultaneously into the interaction lines of the prediction profiles? A neutral grey seems the only option.
Maybe: add some quick select buttons, to (gradient) color code the lines which belong to one variable - keeping the interaction with others variables gray. Then the user can pick the interaction which is most prominent and highlight it.
or: use different colors for interactions which belong to different variables.
(e.g. all green interaction curves are interactions with X1, all blue curves are interactions with X2, all red curves belong to X3.)