The scaling was changed to be more representative of the actual contribution to that bin. We had arbitrary scaling which was not consistent across all of our devices, so we changed it so that the scaling factor is ‘correct’, IE divide the number of hits in that bin by the total number of possible hits for that bin.
In general this resulted in a decrease of absolute values but will still plot the same if you increase the sensitivity of your coloring algorithm. That is what the slider does in Spike, it changes what is considered ‘full scale’.
I hope this helps,
Regards,
Andrew